The one touch control in the app is great, and it really doesn’t take more than a second to warm up which is better than I would have expected : )
However, I really don’t want to have to find and open the app in order to switch to a preset. I really want to ask Siri to do that, and right now that functionality just doesn’t seem to work. It may be due to something in iOS 14 that broke the developer’s previous implementation, but either way an update needs to be put out in order to bring that functionality to a usable state. Would gladly update my review to 4 or 5 stars after that functionality is back, since I appreciate that there is an app for controlling this at all!