PIT is a sort of hybrid. It's called "Gold Counter", but it should be called "Gold Booth" as the "counter" is a booth out in the garage rather than a position at the regular counter. And they have a (small) name board out there as well. It's just that rather than having paperwork and keys in the car, you have to get the paperwork and keys from the agent in the booth. (For my rentals, the paperwork has been ready when I arrived.) Then get in your car and go. There is no gatekeeper at PIT; once you get your keys you just drive out.

It does have the main drawback of Gold Counter vs Canopy in that you might have to wait for a few people in front of you making adjustments or their first Gold rental or whatever.

I gather PIT is not the only station set up like this, but I haven't seen others except for SFO (which has a huge "Canopy" section).