The shower bath with a wide area to stand in has become a generic design.
The corner cistern and shower provide for an en-suite shower room in the space needed for a corner bath.
The toilet seat can be fixed at an angle of 45° which means it can be positioned nearer to the wall, perhaps enabling a larger basin to be fitted alongside, or even to allow a door to open.
The first range to address the fact that the average British bathroom is the size of a king size bed.