The good:   this air purifier is really quiet.  I am impressed with the silent operation it exhibits.  Also, the system is very easy to use.  The controls are quite sensitive to touch. The size is acceptable, once you know you ahead you would not want to place atop a desk or table, due to its footprint. It also feels like it will treat a larger area – I stopped using a BlueAir and the air quality was comparable. 

The bad: It emits a smell while in use, even far from device.  Kinda like chlorine in scent.  It’s not so strong that it lingers after being in the room for a couple moments, but when you first enter you know the machine is active. Also, since it needs to be plugged directly into an outlet this can limit where you can place it (if your house is like my mine).

Overall, I recommend as a small device to clean the air in a room, once you know it will emit a smell.