From what I've read my grill is a bit more finicky than the Big Green Egg, but for my first father's day a couple years ago my wife bought me an iDevices iGrill 2, which is a bluetooth thermometer with multiple meat probes and ambient sensors. With that I can slowly build up a low, controlled burn and remotely monitor the meat. My only complaint is that I wish the BT range was a bit further as it cuts out near the front of my house and most places upstairs.
I have Maverick probes, but I got the iGrill 2 for Christmas ( I also bought a couple extra probes since there was only one in the box). I am going to compare them, but I think being able to track temps via my phone will make up for the lack of range.
I use the original iGrill that I got several years ago after it was first introduced. I love it and haven't had a single problem. I did do some research though after reading about the second version and see that they did have some difficulties with some of the probes and you should contact iDevices to get updated replacements.
Here's where I got the information.In early August of 2014, the manufacturer of this product issued a recall on the Pro Probes that come with the iGrill2. Apparently the probes did not withstand heat as well as they should. If you own this product, you might want to visit their website to determine what steps to take to get replacement probes.