I looked into CIM to see if it for me. Only having read review and watched vids and pics and gave it some thought I decided its not for me
You cant decide if its for you or not without actually experiencing it!
I personally love finishing with CIM, as the feelings are about 10x more intense for me than with a regular orgasm (as long as the girl is good at it). In my experience, if a girl is willing to swallow, she tends to give better oral, so I tend to always look for that when I'm searching "likes". I think because they are not worrying about dashing off to the bathroom, they are more focused on your enjoyment.
and wondered what both parties received from the act which let's face it is like the starting block in most punts I read, OWO I mean.
As I mentioned earlier, I experience much stronger orgasms from CIM than any other finish. That would be reason enough on its own, but its a great power rush having a beautiful girl kneeling in front of you concentrating on giving you a good time!
As to what she receives from the act? Well the obvious answer is money with regard to punting, but some girls genuinely enjoy oral and in particular, swallowing. Its a fairly submissive act, so if a girl is slightly submissive by nature, they are more likely to enjoy it.