I've had both the Dyson and the Shark. There are pros and cons for both of them. Compared to the Shark, Dyson has a wider vacuum path and a bigger cannister for dirt. But it is a lot heavier and more difficult to get corners, vacuum my stairs, use the attachments. It's also a lot more expensive than the Shark and IMO for the price didn't seem to last very long. I'm not sure, time flies, but I think I had to replace it after about 8 years. I had heard good things about the Shark and it was significantly cheaper. So when I had to replace the Dyson, I decided to try it. I've had the Shark about a year. Besides the price, I think it's a lot easier to use. I like that it's light, that I can easily get corners, change from tile, hardwood, linoleum floors to carpet with a touch of a button. It easily detaches to do the stairs. It goes flat and I can vaccum under my bed. What I don't like. I have to empty it more, I have to clean it more (it does get clogged up easier). I hope that it lasts at least as long as the Dyson. Adding I have a golden retriever, who sheds A LOT.