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

I love the sink being in the open and the toilet & shower separate. I am really shocked so many people (on RV shopping shows) dislike it so much. In our sunseeker you could use the john & wash hands at the same time felt very tight and the shower was separate. I like this combo much better, as someone mentioned I can get face on while he takes a shower. I also love the big medicine cabinet too.