we got a room close to the a/p w/shuttle, had a nap, lunch, taxi to center city, took a circle bus which allowed you to get off look around, get on the next 1, went back to hotel & then ap about 2hrs before flight....i don't remember any names, but it worked nicely....good luck...

edit to add....it was about 8 yrs ago....luggage was checked thru to jnb...