I've had 2 experience:

I've seen a PT at Duke Sports Med (actually 2 different ones), and she is awesome. It's a similar situation to Oakleaf - she's with me most of the time - I warm up while she finishes with the appt before me, and she might start a warm up with someone else while I'm finishing up. Otherwise, she's paying attention for the hard part.

I've also seen a PT as part of a WC injury (knee). She saw 2-3 patients at once, paid no attention to what I was doing or whether I was inappropriately hurting, and generally made things worse. I ended up paying out of pocket to see someone better, since she sucked.