I have studied many devices from different manufacturers. It had the best rating and also one of the most ratings. I understand why! Really easy to set up and use. We have a long haired cat and a pet rabbit. After the vaccination, your hair will grow back within a few days. As you can see from the photos, this little beauty gained a lot in 45 minutes of roaming around on a matching mostly wooden floor with an odd rug. Then the second photo is in our bedroom in the basement where only the cat goes. I never thought it was that bad there, very impressed! The pets are still afraid and run away, but they will get used to it. I love the fact that I can walk every other day while I'm at work and keep the apte clean of pet hair! A little scared last night, when I wanted to start at 12:30 instead of in the evening, I thought that someone had broken into our apartment. I recommend 100%. Too bad I already have one!