38 states believe if you're a party to a conversation, you have a right to record it and I agree. I would have no problems if a state put restrictions on it, such as it not being legal to share unless the person was lying about or otherwise misrepresenting what was said, but I see no reason you shouldn't be allowed to protect yourself.
But 12 states do require two-party - technically all-party - concent. I won't suggest there aren't reasons that some states are like that but I'm sure glad I didn't live in one of those because if so my recordings would have been inadmissible in court and I might have went to jail for quite a while.