1. It was the most quiet airport hotel I have ever stayed at. No plane noise at all. Also, no noise between rooms, very well insulated so the kids never heard anything from the room next door to DW and me.
2. Close enough and with easy access to rental cars, we got a convertible from National (for $42.00) for Friday night, drove to downtown Disney and went to Cirque du Soleil for a show and Wolfgang Pucks for dinner. Since you are at the airport, getting the rental car for there and back is easy with the airport location. BTW, if you do this, get a membership from Hertz, Avis, National, etc. so you can skip the line and get your car directly (saves even more time).
-- JimV