I bought this unit 2 days ago and I think it needs to go back. I have two issues - a major one and a minor one.
The big issue is that I found that the unit is too loud for a living space. I can't imagine reading to my daughter with the unit running right beside me as is pictured here. I find it loud if you're right next to it, significantly intrusive if you're in the same room and noticeable in most of the house. At night, when I fall asleep, I can clearly hear it running in the living room (although there is no common wall and we have plaster walls).
A minor issue is that the humidity measurement is different from the rest of the devices I have in my home. In order to get the humidity to 50% (as shown on my humidity meter), I need to set the unit to 40%.