E -
As a defensive cartridge, I'm dubious at best. As a sporting cartridge for a handgun, it most certainly is interesting. I absolutely love long range shooting and small game hunting (ok, any kinda hunting), and this "tacti-cool" pistol really seems interesting as a small game getter.
I've shot it and the P90 and they're extremely fun. The P90 in full auto is so easy to control you can just about write your name with it.
I think you're going to have a whole lot of fun with your new FN, just don't use it as a defensive arm.
