I just bought the Miele S5 Callisto canister vacuum cleaner. I was a little hesitant, due to its price, but after using it for a week, it was worth it. The vacuum cleans so much better than our old unit. I even tested it out the first night when I got home, at 11:30pm. It was so quiet that nobody was disturbed—not the kids or the dog. I was able to use the vacuum to pull so much dog hair from under the bed, that I could have built a new dog from it! The Miele S5 Callisto vacuum was definitely money well spent. If you are in the market for a new vacuum cleaner, I recommend any of the Miele vacs.