We tried Zerorez on a recommendation. We have a child with sensitivites to chemicals, so this seemed like a good way to go. It was a little more expensive, but WOW! They were on time, they put up special wall protectors so the hoses didn't ruin the corner wall surface, they did some extra area rugs at the last minute, and they even left us booties for our feet. The carpets looked amazing, they dried quickly, and they feel clean and not goopy. LOVE!