In terms of just maneuverability, the class A may even be a bit better than the class C. Class C's often have pretty horrid minimum turning radii.
My experience with my 32' class C has been that the size and maneuverability is not frequently a big issue. Partly that's because I opt not to take it where it would obviously be problematic, such as downtown in large cities. But even so, I have very seldom found it impossible to park reasonably near to where I want to go in rural or suburban sorts of areas. It may require crossing the street or staying at the outskirts of a parking lot, but in general nothing not manageable with a couple minutes of walking.