The Royal has been great for us almost no issues
Just wanted to add my kudos for the Royal Procision 7910. Works greats. I like the two scrubber bars instead of the floating heads on the others. It has two suction locations..before and aft..the brushes/liquid dispenser. Soap and water are dispensed separatedly so I can rinse or use soap. It is very stingy with the soap. Don't know if it is too stingy. However, we have old carpets and have always had an animal in the house. Cleans carpets great. They look like new. I bought a carpet cleaner to use on the older carpet because I wanted complete control over how much water and soap went into the carpet. 3 yr warranty. Very pleased.......so far. (NO. don't work for them. I'm in an auto related business.)