After my Dyson died I bought the shark in hopes of saving some $$. Pros: light, easier to get under beds, easy to change from carpet to hard floor setting, bin is really easy to empty. Cons: (as compared to the Dyson) suction not as good, doesn't swivel as easy, head is a little smaller, doesn't have a wall mount to store or come with as many attachments. I haven't run it long enough to challenge the battery so I can't compare. Overall it is good for a small place that doesn't get a lot of traffic and it does a great job getting up pet hair.