Wow. I'm surprised at how many therapists on this thread can't take criticism. I have one therapist who is wonderful at it. Interestingly, I almost never have anything to criticize her about, but on the few occasions that I have, she listened, validated my feelings, and apologized. It was pretty awesome. I wish I could be that non-defensive. Sadly I'm not.
My other therapist is OK at it. I get frustrated and angry with him a lot more often. Sometimes I think I just keep seeing him so I can figure out why I do that, and also to practice being assertive with a male. He doesn't exactly get defensive, or angry about it, but I can tell that it is a conscious effort.
I could not and would not ever keep a therapist that I couldn't disagree with. It would make me really sick. I can't even handle medical doctors who won't listen to a polite disagreement. I'm too opinionated. I don't need everyone to agree with me--although it would be nice because I'm mostly right

but they do need to respect my right to have an opinion.