Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Worked well for allergies but stopped working
Review: This air purifier worked great for a little over a year until one day it just wouldn't start! The controls made it easy to start an hour before I got home, or an hour after I'd fall asleep, but after a year it would not work in any outlet (in two apartments) UNLESS I had it plugged into my UPS (Uninterruptable Power Supply) and the UPS was unplugged from the wall and running on it's batteries! I'm not kidding. This was true in 2 apartments; two UPS units... Other than that, great!
