Poor at best
I resent that I had no option to buy a HomeKit air vent and this app just makes the experience worse. I shouldn't have to go anywhere but the home app to control my devices. Having to open this app is an inconvenience. Having to use the app is a huge inconvenience. They clearly did not hire a UX designer. I have two in my home. They both are labeled by their product name and I can't change it to a location name. The bathrooms are back to back in my home. When you select one vent, you don't know which room it belongs to and if you pick the wrong one, THERE IS NO BACK BUTTON TO GO BACK AND SELECT A DEVICE. Half the time I can't properly change the lights settings. It is literally easier to get up and touch the switch than to use this app in my hand.