I was just about to say that, we have two Extracta Exels and two Scrubba Deluxe heads and two wands, very rarely do we ever use the wands, the Scrubba Deluxe is the business, regardless of the size of room.
I also use microsplitters, though not universally, and the Scrubba deluxe is a good method of pre-agitation for these before extraction.
I like them they leave the carpet drier and they are far superior to a wand regardless of how many jets it has.