This is by far the best vacuum I've had. I have had several dyson vacs in the past. They work. But eventually you must clean them out and change the filters. If you don't the vac will lose suction and develop an odor. This vac on the other hand starts with fresh water and you discard it when finished. No odor! No debris sitting in the vac! I have a bearded collie and a jack Russell. My house has never been cleaner or smelled fresher!