I have several hundred jumps on several sizes of the Firebolt canopy. I have nothing negative to say about it or it's durability. It's a very good, all around canopy when loaded at 1/1 or below. Loaded higher, it becomes a bit more sporty but not in a bad way. It's a fun canopy to fly.
I work for the manufacturer and we received a canopy on it's second line set in for it's third so it had around 1500-2000 jumps, as expected the ZP fabric was not holding air like new but still had some life left in it. I did a test jump on it and at around 2-1 it flew great and still had a lot of flair left in it.