I have no regret upgrading. I find my temps are closer to what they should be vs the old controller. The app is a bit clunky and needs some improvements, such as confirming a shutdown. I've accidentally shut it down without my knowledge by touching the "off" button, only to realize 10 minutes later. It would also be nice to have better graphing capabilities, as they are pretty rudimentary. Also adding cook profiles would be nice. My meat probes are pretty spot on, but I don't usually use them. The controllers they are shipping now, should have adjustable probe calibration, mine does (had it a few months now). It took a bit to relearn my pit, but it wasn't a real steep curve. $99 is a pretty good deal IMO.