The Big Green Machine has been awesome! I can't speak to the longevity, as I just got it last month, but it's very sturdy, so I don't foresee any issues there. Super easy to use, and works like a charm. My wife just raved at how the carpets looked new, felt SO soft, and smelled so good! Got a ton of dirt out of the carpets, and that's after renting a Rug Doctor less than two months ago. Got stains out that the Rug Doctor did not. Extremely happy that I decided to purchase one of these! If I had to come up with any complaint, it would be that the plastic in the tanks could be a little more see-through, as it's not easy to see the water level, but that's such a minor thing when compared to how pleased I am with the how the product works, so definitely not enough to knock it from 5 stars. #sweepstakes.