We have stayed in the treehouses twice already, and love them! They are so quiet and peaceful. Plenty of room for the 6 of us to stretch out in the 3 bedrooms. We enjoyed the quiet pool every day of our trips. Never crowded. Our only minor complaint might be that it would be nice if Disney opened a pool bar there during the day. The building looks like it was built to handle it, and it would be great to get a refreshing beverage while relaxing by the pool. As far as the main pool goes, our kids are older, and they visited the main pool once, and said that it was way to crowded and noisy for them.
I can see how some people think that the buses could be a problem, but both times we went we had a car. We simply drove over to the Grandstand in the morning, and caught the park buses from there. But even if we didn't have a car we figure that we are on vacation, and so what if we spend time on a bus?!?! It's the perfect time to talk with the other vacationers about their Disney experiences. Meet new people and relax and let Disney do the driving. If you drive to the parks, you end up farther away, and unless you go early, you're taking a tram, boat, or monorail to get to the front entrance anyway. Then you have to worry about driving back to the resort. No thanks. I drive all the time when I'm at home, and I love the fact that I don't have to do it when I'm on vacation. I can really relax. We stayed in Fort Wilderness in one of the cabins several years ago, and even though we had a car, we used Disney transportation exclusively.
We have been DVC members for several years, and once we joined, our vacation habits changed greatly. We no longer feel like we have to "commando" the parks to get every attraction in during a visit. If we don't get to do an attraction, we know we'll be back soon, and so we don't sweat it. I realize that most people can't go 2 or 3 times a year like we do, but even if you can only go once every few years, it simply isn't worth the headache to try to do everything. There is no way to do it all in one vacation.