:iagree:
As John Speed argues compellingly in Travel Vans, you should do anything you can to avoid having dedicated space for the toilet/shower facilities. Your talking about an area that isn't used one-twentieth of the time. To dedicate space in a small camper exclusively to the facilities is profligate given all the other things you could do with the space.
Yeah, I agree with that principal, and I'm not bothered by the location of the head, relative to the door. My main concern is with the layout that puts the lower "dinette" bunk between the upper bunk and stuff like the door or the head. One of the luxuries of an indoor head is not having to wake everyone else up to dress or exit vehicle for a midnight pee, but someone in the upper bunk climbing over the lower bunk negates that strength. The other niggle is that the side-facing dinette seating isn't ideal for long-term use by 3rd/4th travelers.
There are a number of ways around it - heck we even manage it while sleeping 3 people in two bunks in an Astro "mini" van (though we're all family, and our arrangement is about as cozy as would be feasible). Westy-style layouts solve the problem, but are hard unless you have the interior length to have living space past the end of the lower bed.
The problem with so many wagon-based floorplans is that so many are built around a 2-traveler layout. which is fine until you need to have a third.
The other nice solution I've seen is the new FWC "UTE" models with a cab-over at one end, a dinette/bunk at the other, and the stow-able cassette near the side-entry door in the middle, but this trades off against having to use a crew- or extended-cab truck for the 3rd/4th passengers which just moves "wasted space" to the truck cabin since that area is really only for seating while driving.