They are everywhere on American house and some look quite good. If you want one, then have one.

Not if you install correctly!

The Less Glass in your shower area the better - if you can avoid it. Eventually shower screens, no matter how effectively and often you clean them will deteriorate over time and shower signs of glass cancer. If the space allows it, effective planning can allow shower walls and other alternatives work effectively without the worry and hassle of cleaning glass. Thanks Paul

With most old houses walls and floors are not straight and perfect, however wall tiles can go some way concealing this. I don't know if a reputable tradesperson will fix glass panels to old tiles and be happy to guarantee the job. Seems like an ideal opportunity for mould growth between the old tiles and the new glass if any shower water gets an opportunity to seep around the edges or joints of the glass. I think you may be surprised just how much this type of glass costs to install, and you would probably be better off doing the job properly with new tiles and a proper waterproof membrane as required by the building regulations (which your old shower recess doesn't have). In the future your potential new buyers will probably appreciate a freshly renovated bathroom that conforms with the current building regulations (with standard tiling) rather than a glass panel over mould in a bathromm that doesn't comply with the regulations. Best of luck, Dr Retro of Dr Retro House Calls