While we were cooking our turkey, we changed the temperature of the oven due to the nature of our recipe. It didnt seem to plan for that, and even though it was only a quarter way done, it still said that there were only 15 seconds left, at which point it quickly added 20 minutes at the last second, which could have easily ruined the turkey if we had not been watching it. The fact that some of the alerts rely on the time remaining prediction almost make those features completely useless, and therefore not recommended until they fix it.
lesismore100 about Williams-Sonoma smart thermometer, v1.2