This is about a 7 minute shuttle( and by 'shuttle' I mean full-sized bus) ride away from Terminal 2, The shuttle driver is very helpful with baggage handling.
It's a pretty smart idea to assimilate the rental centers at one spot to eliminate the confusion. Most of the rental companies are open 24 hours. Car access is super easy and lot numbers are well-organized.
I was surprised to see that each car has the key on the door. "Where is the the Aston Martin DB9 I specifically had reserved?..... Of course that 'Honda Civic' on my voucher is a typo."