I had no idea the five seven had that much capacity! ... I have been considering a north american mini due to its price/conceal-ability
Standard magazines are 20rnds, extended mags are 30 and stick out about 1.5"
It's fun (albeit expensive, ammo is $21/50), and people look at you funny when you shoot 30rnds out of what looks like a normal pistol without reloading...it's like a movie gun.
Also, very little recoil, and you can get back on target FAST. With reasonable shot placement, I have no doubt to it's lethality. (also, it's now the standard issue secret service sidearm IIRC so that is saying something.
Muzzle flash is significant...especially indoors...
My own ballistic testing...well, it will yield a 1-2" radius cavity about 2-3" into a phone book, and go through a 3-4" phone book...but not two of them.. No melon exit wound though. The ballistic tip bullets expand fast.
Side note, same testing, a 300gr lapua scenar bullet at 2750fps out my 338LM goes through FIVE phone books, then EXPLODES (literally, the biggest fragment was about an inch across) a melon, and still knocks over a pepper popper :)