It was fabulous! I would do it again on every vacation, except we decided to buy
DVC this year. Concierge at the Poly had been my dream for about 5 years and we got to do it this year, finally!
Just everything about it was great - the mousekeeping staff (they were like invisible and everything was just perfect every time we walked into our room, multiple towel animals, turn down service).
We ate breakfast in the lounge every day but one, and that alone was a huge convenience. We also had snacks in the lounge a few afternoons, dinner a few times, and DH and I really enjoyed being able to stop up and get a drink and come back to our room after a long day in the parks. Chef Dick's food and his staff's service were wonderful.
The concierge staff was also great and really made us feel welcome.
Our view (we had an MK view) was fabulous and we saw quite a few showings of Wishes and the Electrical Light Parade from our patio.
Obviously, it's a huge splurge for most, but if you can afford it, I highly recommend it.