Never did the couples instructional, but I have to say that I have consistantly (4 times in 9 years, every instance) had the best massages I've ever had, anywhere, at the GF Spa.
It's been a different person every time, I think they have pretty significant turnover. BUT, they audition people very rigorously, and what you will get are some of the best of the best.
I don't think you could go wrong with any body work service there.