I have owned several Hoover carpet cleaners over the years. All were very similar to this model. One had the Clean Surge option, which just floods more water out for tougher stains, and one had attachments for upholstery.  As for power, suction and body build, they're all the same. This "commercial" unit is no different, sadly. The only difference with this model is the addition of a few stickers slapped on it that say "commercial," and an orange power cord instead of the black cord. Everything else is completely the same. So. I feel that this product is a bit misleading. Yes, it works very well and really gets the dirt out of the carpet and does not leave them soaking wet, BUT, so do the other non commercial models. So, if this model is higher price, do not fall for the gimmick.. buy the cheaper model. I do give this unit 4 stars because it does work very well and is actually good on hard floors, as well (so are the other models). The performance is great, it's just that it is no difference in power etc from the non commercial units.