I have heard some on the later models. If you can find a 732, it has 2 probes (one is supposed to be the box probe, but stick the meat probe in a piece, then remove and use the box probe in that one...or just buy a second meat probe) and the only complaint I could have about it is the one way alarm setting...it only goes up so you have to go past the high temp (540?) to get from 195 to 150.
Other than that, it has been a solid unit for me and my Q comes out great