I have had my BGE for over a decade and have had multiple other controllers from various other companies. This one was easier to setup, plug in, and monitor cooks. The app is very intuitive with a very good User Interface. Changing set temps and alarm temps was very quick and was easy to do. I look forward to many years of service with this device! Other devices have had clunky ui’s and weren’t easy to program or setup over WiFi. This one connected to my wife in less than a minute and works with my phone and tablet, allowing for easy monitoring of my cooks while I am not close to the smoker.With Flame Boss maintaining pit temp and monitoring meat temp, I'm confident to smoke overnight in my ceramic kamado. I recently smoked a 15 lbs. brisket overnight and Flame Boss saved it! I didn't wake up to the meat alarm at 6 am because I'm a heavy sleeper (an option for a persistent, on-until-canceled, alarm would be nice). Flame Boss shut the fan off so the pit temp could drop to the keep warm temp, which I set at 150F. When I finally woke up 3 hours later, I leapt out of bed and rushed outside only to find that my brisket was fine. The pit temp had dropped to 156F and the max meat temp only rose 2F above the setpoint. Took the brisket off and let it rest. Sliced it and it was perfect!Using Flame Boss is so simple, with or without the app, though I recommend using the app. The app is a little buggy, so sometimes I need to close and restart it to continue using it. Since Flame Boss uses WiFi instead of Bluetooth, my cook data isn't lost when I close and restart the app. I also love the sharing feature that I use to send the realtime cook to my friends.On the cook I described above, it maintained pit temp within 10 degrees of the setpoint. My instant read thermometer typically measures within 2F of the Flame Boss probes. I calibrated all the probes using boiling water when I first got it. They were spot on within 1F. Though the probes are accurate, I would prefer an option to adjust the readout temp based on my calibration.The pit probe sits snuggly and right above the grate thanks to the alligator clip.My Flame Boss came with 1 meat probe. At the price I paid, I felt like it should've come with the max amount, 3.I am a fan of this unit, however I am running into a problem. I am not an internet newbie, and have about 5 computers at home, along with several wifi devices. I have been doing computers for the last 40 years or more.The manual portion of the controller works very well. It seemed to keep the temperature in my Pit Boss egg to within a few degrees. I had set it for 350 and it never moved more than a few degrees in either direction. When I raised the lid on the unit, the temperature probe dropped by at least 50 degrees. But when I closed it, the temperature slowly raised by up again. It did not run the fan needlessly but waited for some time before adding a little bit of air. So there was no overshoot at all.I tested it from 200 to 350 and it always stayed very constant. If you start out at a high temperature, it will take some time for it to come down in the egg. So it is better to cook at a low temperature, then when you need a higher temperature, then raise the temp on the unit.Why I am giving it 3 stars is that no matter what I do, I cannot connect to it from an android phone, a laptop, or any pads, whether they be android or apple. It simply does not put out the signal that I can find. I even used a signal scanner for the wifi and nothing at all. I tried it using the automatic method, and the manual method. Nothing. I did email their support and will see if they can help, but as of yet, they have not replied. I will give it a few days and then return the item to Amazon if they do not help at all.Edited: the wifi was not responding. I tried to get it on manually. Would not. So I sent an email off and within hours it was answered and Marcus emailed me back from Flame Boss. Talk about customer service..So we worked through the problem. It turns out it had the wrong IP address programmed into it for their server. We changed it and after a few more attempts it connected. Then it automatically updated, and is now rock stable. Marcus was wonderful, and very courteous. I do have a lot of experience with computers (over 40 years) and the internet. so working with him was easy, but if I did not have that experience, it still would have been easy. He even offered for a quick return, but I turned it down to see if we could get if fixed together. I had even run a program to look at the signal strength, and there was none at the beginning. After fixing the server IP number, it turned on and ran great. Granted, I had an earlier revision number for the firmware and software, and that was causing the problem.I had earlier filled out a ticket to return it with Amazon, and they also gave me no grief. Gave me a return label immediately. Now I do not have to.And Marcus even stated at the beginning, go ahead and use it for the weekend and then when I get time, send it back and they would replace it. What a generous offer. And he would find out the problem and respond to me and let me know the failure. Now that is very good customer service. So he and I talked and he told me some tips to using it, how to cook the best ribs and chicken wings, and then sent me recipes! And this was on a Saturday morning during the weekend! I could just call Marcus and talk to him all day about bbqing! What a pleasant gentleman. I am 71 years old and he never talked down to me at all. He made me feel right at home.So go ahead and splurge with this company. It is a great product and they make things very right!I had another brand so I'm not new to using these controllers. This FB 500 unit performed flawlessly on a 22" Weber kettle. I'm stunned at how precisely the temperature was maintained over a 5 hour cook at 225 degrees. I never touched it. Once the meat was nearly done, I remembered the potatoes. I added them late, so I adjusted the temp of the FB to 350 which was hit in 10 minutes. Stupendous! I should note that I used a slow-n-sear charcoal basket with the water reservoir. That performed fabulously as well.The only negative so far, is set up. The instructions are just about information-free. I'm technical and even then, the app would not connect to the "new controller", which if it did may have made set up easier. I'll never know. I was successful connecting to wifi using only the display unit, but that was a profoundly painful experience, mainly because I had no idea what I was doing. I still don't know what the diff is between [station] and [access point]. Is that supposed to be intuitive? Entering your wifi password with one button is amazingly slow and painful. Did anyone point out that along with hitting the button up to 52 times for each letter (yes, 52), there is a [backspace] and an [enter] choice? Amazingly primitive.The app worked very well once I got it connected. You can even add notes to your cooks. Stellar! The price for this thing is a bit shocking but all-in-all I'm very happy.This is a really great device, once set up it will maintain the temperature set unit the fuel runs out. this enables long overnight cooks without having to check the BBQ every couple of hours.Although the box was sealed, there was an empty space where the fan should have been located.... I will be returning it.Supplier speedily rectified this problem, supplying a replacement fan, so I have upgraded my original review.This thing is perfect for my kamado. Easy setup and install. Plugged it in, opened app, entered code done. It updated itself. Was cooking in 10 min. More products need to put at least this much effort into their app.Clean interface, features and their controls are obvious. No crashing. Quick account setup. Works with cloud, local or direct. The guys who made the amazon phone app could learn something here.works fine but the wifi connection sometimes is sketchy and the software interface looks outdatedKabel nach erster Verwendung locker, Schrumpfschlauch nicht korrekt verpresst