M.K.
Yes, I have been using it on my hardwood floors for a couple of years now. It gets used once a day under the table! It's incredibly convenient to pull out and use if company is about to stop by -- a quick touch-up to the foyer and kitchen is a snap.
The only issue I have with it is the longevity of the recharable battery. It lasts only about one year. My husband is a mechanical wiz and has tried to see if he could do anything to keep it longer...but we had to throw it out and purchase another one.
So, I did like it enough to buy another one...but once my 2nd one goes bad, I may think about buying a more permanent vacuum for my wood floors. But those are heavier and need more storage space and are often corded (which is another reason I like the Swiffer so well!)
Be sure to check online at the Swiffer website for coupons. I think you can almost always find one!