In our TT we had the combined bathroom (all in one) and it was good ! We now have the toilet and sink in one room and the shower across the hall and it also works well for us !
Our floor plan allows for the bathroom door to swing open and block off the bedroom, shower, and toilet area from the living area of the RV.
I do like the fact that if one of us is in the shower the toilet & sink area is open for the other !
As stated above, make sure you have access to the bathroom, fridge, sink, etc with the slide(s) closed.
Good luck !
