I am not a mopping expert by any stretch of the imagination, but I mopped my floors tonight and I must say that I love this mop:
The mop head is a big flat rectangle, and there are big washcloths with elastic around the edges that go over the big rectangle. It's really like scrubbing your floor with a big washcloth, except you don't have to get down on your hands and knees! And it's so big (but lightweight) that the job goes very quickly.
I buy Mrs. Meyers cleaning products from drugstore.com, so when I mop downstairs it smells like lemon verbena, and when I mop upstairs it smells like lavender. I find this far more pleasant than PineSol.