In full auto short barrel SMG variants they are a blast and probably pretty capable for certain serious social uses (protection details, vehicle use etc.)
The semi auto PS90.....ehh I didn't really like it all that much. I loved the P90 but the PS90 struck me more as an expensive high capacity .22 magnum. It looks cool, feels neat and is certainly not shooting marsh mellows but frankly I'd rather have a Beretta CX4. Just as cool looking with traditional ammo.
Again the PS90 runs great, is made great and is cool as hell but just doesn't scratch my itch in semi auto 16 inch guise.
"Is there anyway I can write my local gun store off on my taxes as dependents?"