Horrible. 99% of the time it doesn't actually update the devices that are currently connected. The 1% of the time it actually works it's wonderful; I can blacklist/un-blacklist, monitor devices that are connected, etc. Deleted and reinstalled app multiple times, disconnected and reconnected from the Deco devices multiple times, still has ZERO consistency for working. I'm currently staring at a blank device screen (yet again) after reinstalling the app for the twentieth time. Garbage. Fix it!