We stayed for a Friday and Saturday night at the Marriot Grande Vista in August (to minimize those weekend points at
DVC). The kids wanted to go to Universal, so it worked out great. And Seaworld is almost right across the street.
We paid about $150 per night for a 2 bedroom unit, but you can do better if you go to a sales presentation (we didn't). The unit was pretty good size, with the living room, dining area and kitchen being larger than DVC. The bedrooms were also good sized. Everything was well equipped, and the balcony was large-similar to OKW.
If we were to go again, we would ask for a room close to the pool. We were quite far away and needed to drive there (again, similar to OKW). The pool was very nice. There was actually more than one pool-there was a lap pool, a winding pool with a waterfall and a kids area. Also, there were 2 hot tubs.
The only downside was that to do anything you had to get in your car and drive. With two 17 year old boys, we were always dropping them off or picking them up. A golf course surrounds the property, but we are not golfers. Many others would enjoy that!
It didn't seem as much of a themed community to me as the DVC resorts-where I felt I was in my own special place. My husband didn't seem to notice this as much as I did.
But we would (will) definately return for a Friday and Saturday night when we want to go to Universal, Seaworld, and other attractions outside of Disney World. I think you'll like it a lot! But to actually do Disney-staying on site is great and very convenient. We did spend the following week at BCV.