Firestorm 22 = Bersa 22; same gun.
We have the FS22 and feed it Blazer (CCI) My family learned to shoot on that gun and it has nearly 3,000 rounds down the pipe. My wife and I go out and shoot regularly and the 22 comes with us most of the time.
I carried it for a while with Stingers loaded, but it's just been replace with a Bersa BP9cc. Bersa's may not be finished as well as the big boys, but they work well and they cost a lot less.