My wife had this done - it was a pretty quick and painless exercise.
The external edges (the bits you step over to get into the bath) were nicely finished, but the edges which butted up against the wall were a bit ragged, although mostly hidden under sealant.
The bath water stays warmer considerably longer now, but the bath volume is reduced more than expected - it's just that bit short now, and a bit narrow.
After 7+ years, it's still in good nick. Can't remember how much it was, and the Central Coast NSW mob that did it probably don't cover your area![]()
Cheers,
Andrew