Owner Rewards?

[CheapMom]

I got a "complimentary" membership in something called owner rewards (website- ownerrewards.com) from GMAC with my latest resale purchase. I have browsed their website (logged on as a member) and I don't see anything too special - but just wondering if anyone had any experience with it- and, if so, what your thoughts are.

It is a website for vacation property (mainly timeshare) owners where you can trade or earn points for discounted travel.