As a few others have said, the couch is a stereotypical psychoanalysis thing. It allows for the therapist to be a blank slate as the client lays there, not looking at the therapist and baring their sole. Most therapy isn't really conducted in that manner.

My therapist has a seating arrangement with a couch, coffee table, and two chairs. When I first started with her, I sat on the couch, because it allowed me to have the coffee table between us. Now I sit in the chair because I prefer to be closer to her. My sessions are conversations and I like the fact that I can see my therapist and her reactions...and if I need something else to focus on, there are a million other things.

I guess, you'd have to decide if a lack of a couch is a deal breaker for you. You could also talk to the therapist about other ways to get that vulnerability in session that you are looking for.