We stayed there in May 2002 with our 3 kids who were 2, 5 and 6mos at the time. I LOVED it. There is so much to see right inside the hotel. There's a Canyon Ranch spa, a nice pool (well 2 but one is for adults only) great restaurants and shops. We really enjoyed our stay there and look forward to a return trip. It really is not that spread out, so any section is just as close. We stayed in the emerald bay section which was perfect. The balcony overlooks the atrium (very cool)
I'm sure you won't be disappointed.
Its very close to wdw, but we did have a car so I can't comment on the buses. Let me know if you have any specific questions.