Super easy to use.
I saw this at a local med clinic that I go to sometimes. So I decided to get one since I have 2 small children. So easy to use. Just plug it in. Only thing is that it's a little noisy but that's because it is pulling air in and out. Don't notice noise  until night when entire house is quiet. Will be repurchasing for more rooms in my home. It's mall and out of the way.
Rating: 4 stars