We had a bathtub reglazed in our riverfront home. It cost about $350 then, and it was really beautiful.

That was done in 2005, in July. In August, Hurricane Katrina destroyed the house. So I cannot tell you how well it would have lasted.

At the time, I much preferred the option of reglazing to either replacing the tub with a new one, or with having a shell installed over it. I think that would be called a "Rebath" option.

The way I looked at it, if the reglazing failed after a few years, I could still replace the tub in the future. And have a few more years service with the old original tub.

If the tub is freestanding, it might be taken out and have a new baked on finish applied.