Recently the city sewer backflowed into our home. Resulting in damage
to the enamal finish in the tub. The city is taking responsibility
financially for the damage but wants to have the tub resurfaced.

I'm concerned about the longtivity and durability of resurfacing. The
city will pay for it once only, if it needs to be redone then we would
have to pay.

The tub was 25 yrs old but in very good condition before the backflow.
Will resurfacing last as long as our tub would have? Is it as durable?
Or should we ask for a replacement tub?
Thank you.