I have had multiple Bissell Little Green machines, and this Shark is so much better. My biggest frustration with the Little Green was that I could never truly clean it afterward because the parts did not come apart at all. Cleaning up dog messes is bad enough without ending up with a machine that also feels dirty. This Shark is much easier to maintain because the parts actually come apart and can be cleaned properly. I have used it on my sofa and carpets for dog messes, and it has done a great job. It is one of those products that makes an annoying job feel a lot more manageable.
