For decor I'd prefer some type of cool looking plastic or cloth curtain, but those tend to be annoying to me. We have two bathrooms, an upstairs and downstairs. The downstairs has glass sliding doors, which I prefer because they don't stick to me while I shower. The one upstairs has plastic on the inside with a nice cloth on the outside, but it's annoying. The tub/shower is entirely too small for me to have them and I wish we could replace them with sliding doors too. I'm a tiny person, but because I have shoulder issues, I have to maneuver in a wide area especially for hair washing, so it can be a pain when my arms stick to the plastic. It's not that it really does anything other that just irritate me to have that feeling, but I just don't like it. At my old house, we had a much wider tub, so I didn't mind the plastic liner then.