Rigid boundaries work for some people but not others. I think finding the T whose boundaries match yours is the most important thing.

My T will accept gifts of things that are free to me (tomatoes from my garden, a copy of a cd she had said she wanted) but nothing elaborate. She will not do hugs and I am fine with that as I would not want hugs at all. She responds when I am in crisis and has emailed me supportive things in the past.

I think if a T had strict boundaries and a client didn't or vice versa would be a big issue.