I was a member for a year and got no benefit out of it--the same information is available elsewhere. Also, be careful if you gave them a credit card number to become a member. They automatically renew your membership--but you can always cancel it as an unauthorized charge.

Here is a link to a previous thread on the subject, with about the same comments as appear on this thread. http://www.flyertalk.com/forum/Forum1/HTML/000943.html