I love the base and the vacuum is damn good at navigating ridges. I'm really surprised how bad he is with pet hair. I had an old shark that was about 5 times cheaper, had better hair but didn't get as much dust as the s9. Don't get me wrong, this stuff cleans deeply and vacuums great, but for some reason it doesn't let dog hair through. Medium length (I have Shepard) is no longer suitable. I do not know why. But I would still recommend it