I’m happy with it. At least I have a peace of mind the air quality is good for my baby. The app is sleek and easily integrate-able into homeassistant. It can be noisy at max speed but it’s still tolerable for me. In fact its overall air quality reading is consistent with xiaomi one that I have in the living room. What I can’t verify is the formadelhyde sensor as my room doesn’t have the smell from furniture to begin with.

By the way, I bought a custom filter filled with activated carbon for the xiaomi air purifier in living room.