I have a signals/billows I use from time to time on my WSK. Overall really good and I really love the full remote monitoring more than anything, though I am waiting on a new firmware update that is supposed to fix a rare glitch that causes something to freeze up...almost ruined my last brisket - I was part way through the cook, coasting along at my set temp when I noticed things on the app were TOO perfect - like straight line unwavering temp....I then realize it had stopped adjusting things. I was away from home and ran home and the WSK was almost 300 degrees (instead of the 225 that was set and being shown) and the fan was running.