Member since 1991. First invite in 2005. Accepted the invite in 2008.
Previous posts questioned whether or not the rather high Coop fee for my NYC apartment provided me with "value". Value is always in the eye of the beholder, but I don't think I do too badly. My apartment is part of a building which has a close relationship with a boutique hotel. For the monthly Coop fee, apartment owners get full access to hotel services, including valet parking, twice-daily hotel maid service, use of hotel concierge service, 24/7 doorman and errand service, access to hotel gym/spa, and (my favorite of all) a total household management service, which coordinates the running of my residences in NYC, Paris, Sydney, and Jackson Hole, sends someone to do my grocery shopping, keeps track of all my bills, ensures that they are paid on time, and sends me a clear monthly report. For my money, it's well worth the investment, because I have better things to do than worry about schlepping down to Monoprix to go grocery shopping when I have to spend a few days in Paris at short notice.
Naturally, YMMV.