I recently got one for my birthday. I have tried iGrill 1, Maverick 735, and the Tappecue. In short here is my assessment:
- iGrill - best app by far
- Maverick 735 - best quality probes and seemed pretty stable on iPhone
- Tappecue - like the WIFI which is why I got it, but cheap probes and mediocre app
Each of these seem like an amateur electronics house designed them. None of them have the complete package. I haven't used the Tappecue that much, but my first time it started raining so I had to rush out to protect it. If I knew I was going to stay home I would just use the Maverick 735. It seemed to work well for me. The iGrill always required pulling the batteries to get it to connect.
I think the Tappecue will be fine if you don't mind the moisture issue and a mediocre app. I have been leaving the house during my smokes and being able to monitor temp will be quite helpful to me.
Chris