A mid coach entry door will generally give you access to the forward area. Then layout of the rear floorplan may or may not provide the access you want. If you can at least open the frig and use the galley sink, that may be OK. Sometimes just opening a slide just a few inches can provide short term access.
While having unlimited access with the slides in would be great, sometimes that dictates a floorplan or length that is less desirable for general use. Make sure you like the unit with the slides open, then verify that you can also live with any limitations when they are closed.