I got the thermometer for Xmas and have been using it regularly for the past 3 weeks. I experienced the same problems as most users, namely the device could not reconnect after powering off the thermometer. After lengthy calls to WS customer service, I made a couple tweaks to settings that seem to have fixed the issue. Specifically, I had to manually select a channel for my router (I set it to 7, apparently something bad happens when you use 13), and I also was told to make sure my wpa password was less than 15 characters. While admittedly it was annoying to have to change my wifi security settings, once I changed to a shorter wpa password (8 characters) the app reconnects easily every time I try. Not sure why this is the case, or why WS doesnt just give you these instructions up front, but it fixed the issue for me. Only reason Im not giving 5 stars is that I cant seem to get the push notifications on the app to work correctly. Alerts only come through when the app is open and the phone unlocked, even with the disable app sleep option being used. In all, I love the device. Its a very cool gadget. May not be worth $200, but as with most WS products youre paying a little extra for an intangible cool factor, and you definitely get that here.