I own my home and find the one bathroom with a "real" tile shower to be a PITA. Feel free to spend life sealing every so often, regrouting, scrubbing, whatever. I don't even use the thing. It's off the master so Karen likes it, so guess who also gets to clean it?
I just want a waterproof wall that I can stand inside of and get clean, and clean it with a few sprays of cleaner and a friggin squeegee.
I don't want bumps in the wall, I want it flat. Don't need pretty fake rock or any of that crap. It's a head, not a freaking art museum.
I want to shove the dogs in it when they come in covered in mud and after they shake water everywhere, a towel will clean it up.
If you're spending enough time in a bathroom to look at tile, you need another hobby at least. Ha.