The problem with slipper tubs is all in the plumbing
Free standing slipper tubs are very fashionable right now. They are gorgeous to look at and such a classic piece of design that some people even have one in their bedroom. For the amateur they only pose one drawback; being free-standing there is no requirement to fit them tightly against the wall, however all of the pipe work is visible and needs to be installed neatly and accurately for the ensemble to look like a professional job. Slipper bath designs come with or without drilled faucet holes. This is because the truly authentic slipper tubs had no faucets and were filled using hot water from kettles boiled on the kitchen range and cold water hauled from the pump in the yard.
For the modern slipper tub without drilled faucet holes there are matching faucet and shower head assemblies with an integrated drainage system making the whole installation look very authentic.