I haven't had one I tried requesting one when I first started doing the points and everything over here on EF I use to do EF reviews on my blog. When I wanted to start doing reviews onsite here the mentor I wanted was available an then we started communicating an she decided to take a break. I just look at reviews on similar items that I am going to be reviewing or ask a million questions to help improve
I think if you learn something from each mentor then why not have a million if you want? You know as long as you are learning more then you knew before.