I have never stayed in one, but on last trip in December I was able to 'sneak' in for a peek while they were cleaning one - all I can say is WOW! I've stayed in an OKW GV and they are GREAT, but to see the WHOLE thing on one floor, and the VIEW!!!
I too was wondering if it is 'worth' the points, and I guess there are just Soooo many varibles - how many points do you have, do you have other trips planned, would you REALLY like to brag that your hotel room is $1500/night (we don't have to tell anyone we don't actually pay that, but let THEM try to get it!), how special is the ocassion, etc, etc.
My one thought was to use OUR points for most of it, then rent points that we would need over and above something else... Just a thought.