The longer I use my Oreck - the better it is getting - I guess I expected instant change - but it takes a while - afterall it did not get there in a day either -
I've had mine for about a year now - mainly cause of back problems and it has saved my back versus the old scrub mops...
My daughterinlaw has teh Shark she got at Sam's Club and loves it - her floors look terrific, but she also has new linoleums but she does day care - after lunch, if there are spills, she gets out the steam mop while the kids go down for their naps, or quiet time - and her floor is back to sparkling clean. Hers came with a triangle tip - which is a lifesaver - mine did not - so wish I had it for mine too - but have not had time to check to see if there are attachments for mine like that - I got lots of little brushes that help to seam a grill or things that you need to get in and around crevices.