I have a bathroom with a tub from 1983. I'm considering tearing it out and putting something new in but I saw some refinishing kits at Home Depot and then found some youtube videos on it. It doesn't look terribly hard. it's your standard alcove style bathtub/shower combo. I think it's a one piece (tub and walls), fiberglass. It'd be a ton cheaper than putting in a new one. Anyone have any experience with that sort of thing?