Pros and Cons of all-in-one bathroom or separate shower

We have the shower on one side and the sink/toilet on the other side. The rear queen slides out so there is access to the rear window to check out the view. I can see the window while driving but only can see semis behind. The bathroom door opens and latches in front of the shower to in effect make a much larger bathroom. A vanity/desk is next to the shower and the corner of the bed is in reach to lay out clean clothes, etc.