I have a white one, with 2 stainless steel probes. I have lost connectivity to them in the middle of a cook, but all I need to do is tell my iPhone to forget about the pairing, and then re-pair.
I use it to monitor butts and birds in the smoker and/or oven.
I like it, even though I have my eye on a Maverick.
Dbl Bbl Smoker, UDS, ECB, Char-Broil gas grill & charcoal grills, SJ - Certified Moink Baller