Old Key West is built as four unit duplexes. There is parking right in front of the unit which is a great convenece. We stayed in a two bedroom villa and it was bigger than the other Disney resorts, but did show a little more wear adn tear. We were on the ground floor so did not have to go up any stairs. If you can't handle stairs, you will want to make sure you ask for a lower villa. There was a little pond behind our unit, and one day we saw a small alligator in it. It scared me a little because of the kids, but the front desk told us to please just stay away from it. I'm still not used to seeling alligators, but I guess that is just part of going to Florida.
This resort is very spread out. The pool, snack bar, front desk, and amenities are at the marina which can be a long walk from your unit. There are several bus stops spread through the units though, so it is pretty easy to wait for the bus instead of walking. They seem to have stops every half hour or so. At night, after a long day at the Disney World it was a bit tiring for the kids to walk from the bus stop but I guess we could have driven.
We also took the boat a few times. We went to Downtown Disney once and ate at both Earl of Sandwich which was really really good, and at Rainforest Cafe which the kids like because of the animal robots. There was a big Winnie the Pooh hot air balloon ride which I think is new. It was expensive but a real thrill! We also saw a movie at the AMC theater. On other trips we did Disney Quest which is also expensive but has hundreds of games and activities for kids. Cirque du Soleil and Planet Hollywood are also there, but we haven't done those.
This was our most relaxing time at Disney because of where we stayed. Old Key West seems to be much quieter than the other resorts. Saratoga always seemed to have people everywhere. Boardwalk Villas was more like a hotel and was right on the Boardwalk with restaurants, entertainment, and a dance hall. You can also walk to Epcot from the Boardwalk and see the Epcot fireworks show.
We rented points to stay here this time. We've already used our points for this year and didn't want to take next years. We had to pay twice as much as our annual fees (our fees are about $6 per point) but it was easy to have another Disney Vacation Club owner transfer their DVC points to our account.