I'm as tech un-savy as they come and I have had no problems with the Tappecue. It is a bit spendy, but I've already gone through 3 Mavericks, which add up to the cost of the Tappecue. Can't tell you how nice it is to know what my smoker and meat temps are when I'm running errands or golfing. I've got a pellet grill, which is almost set and forget, so I can walk away from that for 4-5 hours and monitor from my phone. . . . . that's worth the extra money in my book.
If you like it all the more power to you but there are some pretty heavy caveats with this sort of thing.
First, the price. It's over priced to begin with but even if it wasn't overcharging the consumer it still would be more expensive than any other thermometer.
WiFi range. You have to smoke within your WiFi zone.
Battery - maybe not a problem specifically for the tappacue but the
Meater probes are wireless running on batteries. To an argue that's the same with any electric thermometer, but it's not. There is a big difference in power consumption for four wireless meat probes connecting to a WiFi bridge connecting to a WiFi network vs.the alternatives.
Interference in your house. Every time you add one of those WiFi bridges you increase wireless interference in your house. The more devices you have, the more they will interfere with each other and cause nothing to work. Say you want to add Sonos (fantastic device, fully recommend it) could be everytime you turn on your tappacue your houses sounds system will cut out.
Lifespan: You've gone through three mavericks - fair enough, I don't own one, I don't know what the are like, but I'm still on the same $15 PC brand meat probe I bought years ago because it doesn't have a remote or Bluetooth or WiFi. The more elaborate the tech, the faster it dies. The balance comes from value - is it worth the extra money and shorter Lifespan for greater convenience? The convenience of WiFi over RF is you can leave your home and do other things - but do you really want to go out for the day leaving your smoker on unattended? I sure don't. There's another recent thread here with people discussing their smokers catching fire....
Anyway, like I said, if you like it, great. I just don't see the value in it. Seems over teched to me.