I have hard wood floors at my house. Although my Dyson V8 does a good job picking up dust and other debris, I wanted a cordless mop that thoroughly clean the floor afterwards. I have gone through many Swiffer Wetjets but I wanted something that would feel like less of a chore like working with the Dyson. This cordless spin wave practically does the job for you. I wish the run time would be a little longer but I wouldn't trade the cordless feature. Worth the extra $50 in my opinion.