We've done it both ways and are having a hard time deciding what to do this year. Our kids are young (DS6 & DD2), so having a car was really great. But, we did feel it somehow took away some of the magic. If you can imagine that... we really felt the buses, while sometimes slow and crowded made us feel like we were more in the action. When we drove our own vehicle, we didn't interact much with other guests and went straight from the room to our car without experiencing much of the resort. On the flip side, when we didn't have a car we had a few problems with the bus service. I recall two evenings when we did late dinners at other resorts. It was after the parks closed when we finished dinner. We waited at the bus stops in the cold, then had to bus to DD to catch a bus to our resort. It was awful!!!!! The best advice I could give - which I'm considering doing this trip - is to skip the car and use the buses, BUT if you don't feel like waiting for a bus or don't want to fight the crowds, grab a taxi. They are always nearby or can be called on a moments notice. You'll have the best of both worlds and will probably save a few bucks... I forgot to mention that we stayed at Pop, not the AS.