I used to be the half of a (very tall) couple that slept in the far side of a rear corner bed. It wasn't a problem. That said, I'm still young enough to rarely need a bathroom in the middle of the night. I'm single now and I would choose a rear corner bed either way.
Is it annoying to make? Yes, it is (and more so now that I have a real mattress rather than the crappy foam thing that came with the RV). Is it annoying to get in and out of? Maybe sometimes. However, climbing into an over-cab bed or converting another thing into a bed daily would be WAY MORE annoying to me. This is how I minimize the annoyance of making a corner bed:
Step 1: At the beginning of the season, I make the bed completely using the mattress cover and a fitted flannel sheet. These stay in place all season.
Step 2: I use the FLAT flannel sheet (because I like flannel, usually camp when it's colder, and because it stays put well against the fitted flannel) and tuck it in around the edges on top of the fitted flannel sheet. This is my new BOTTOM sheet. It's easy to put on since it's just tucked in between the mattress and the walls.
Step 3: I use a random flat sheet and a comforter for my top bedding.
Step 4: To wash/remake the bed during the season, it's just a matter of pulling off the two flat sheets and putting them back. Super easy!
In this way, I only battle with the fitted stuff once a year. :) (and it's not THAT big of a battle) To each their own, but floor plan is priority #1 in RVs and I love the rear corner bed floor plans.