I encap'd a church on Friday with mine. CGD carpet with lots of coffee spills. Mine doesn't have the tank and sprayer on it, so it is slower than it could be. I averaged 473 s.f / hr. It was terribly soiled, but it cleaned really well. I used the Tuway pads and they collected dirt just like a cotton pad would. I didn't have to vacuum because they prevacuumed for me, and the Tuway pads didn't leave any lint. Well, I did have to go back and vacuum up a little stuff that the machine kicked out from around some things, but I didn't have to vacuum much. Also, I had to go back over some of the areas a second time simply because they were so soiled that they didn't clean up with one pass.
I'm doing a residential cut pile nylon tomorrow.