I have been seeing a therapist on my own for 4 years and about 6 months ago started to think my husband and I should see someone together, because we were having some relationship issues that we simply could not deal with.
We have only been 4 times but the return in terms of his understanding of his role in our relationship (we were both inclined to think everything was my fault) and my understanding of what I can dare to say to him have been just amazing. It has given him a forum in which he can ask questions safely and with less risk of hurting me (for example, he used to keep asking how long the process would take and I'd feel he was criticising me for not moving fast enough, or I'd feel responsible for making his life difficult).
The therapist really helped him to see how, with some of his actions, he was making life more difficult for me and for himself. I think he also sees the value of our joint sessions and hopefully they will continue for as long as we can afford them to (although my therapy is 80% covered by our insurance, the couple's therapy is not covered at all).