So, just bought the Wifi version a couple days ago. I have used it three times to test it out since I have never had or done Sous Vide cooking before. Did some pork chops, some steak and everything seemed ok. Then decided to do a brisket last night. Set it for 155 degrees for 24 hours which a recipe on the app suggested. Everything looked ok for the first 6-8 hours. I woke up around 2 AM and checked on it. The water was room temperature and the display showed that it was something around 323 degrees (or something crazy high). I unplugged the unit and plugged it back in. The display would only read 32 degrees. I tried placing some hot water into the bath to see if the temperature would spike but it didn't. I decided to see if it would heat up so I waited 30 minutes. Checked the temperature with a thermometer and it read 155 degrees. Thought I was good to go. Went to bed. Woke up at 7 AM, and there was a lot of steam coming off the water. Went and checked it out. The water was over 190 degrees. I went ahead and pulled the brisket, and it was overcooked at that point.
Anyway, exchanging the unit today at the local store I purchased it from. Wanted you all to have line of sight on what happened, so you could know. My experience is pretty low at this point, but willing to give it another shot with some more trials.