Originally Posted by joecaption
Not worth the money, get a pro to refinish it or replace the tub.
not necessarily true.
It all depends on what you want it for and how long you would like it to last. We bought a house that had yellow fixtures, including the tub. Replacement wasn't an option at the time, so we used a refinishing kit ($30). It lasted almost 4 years. We decided to replace the tub, but all things considered, it was worth it.
My parents live in an older home with an extremely heavy tub in their upstairs bath. It doesn't get a lot of use, but they've used the kit several times (every few years) and it is quite durable.
The key is to prep it exactly the way it says, and to make sure that you don't use cleaning products that can interfere with the product. i think that's when we started seeing the paint start to peel.
If you are doing a bathroom remodel, my advice would be to replace the tub with something new....but if for whatever reason, that's not an option and you don't need perfection...the DIY kits are sufficient.