Steam cleaning carpets verses rug doctor?

ARTHUR

I am getting my carpets cleaned soon and the shop near me said that they no longer use a steam cleaner as some customers had complained that the steam cleaner had ruined their carpets so now they use a carpet cleaner that they put a cleaning chemical into the machine and it cleans your carpet leaving your carpets dry in half an hour and its a bit like a "rug doctor"
has anyone heard of this and can steam cleaning ruin a carpet
also would a (industrial ??) "rug doctor" be any good at deep cleaning a carpet
is the cleaning detergent used in rug doctor harmful to pets

SeanC_2

I have hired a Rug Doctor several times to clean up the mess made by a couple of toddlers. It certainly made a decent go of cleaning the carpets. The Rug Doctor branded detergents don't have hazard warnings and there was no problem with the kids afterwards.

ARTHUR

Has anyone actually had their carpets damaged by steam cleaning them?
I am not sure if the man was only saying that steam cleaning damages carpets because he doesn't use a carpet steamer
and is rug doctor better than steaming