Two colleagues have them, and they're jam-o-matics that are very picky about ammo.
When Ruger MK3's, Ruger 22/45's, and Browning Buckmarks exist, I don't see why anyone would bother with guns that are picky about ammo (i.e. the Mosquito).
My 22/45 functions more or less flawlessly (i.e. I'll get one failure to fire in a while, but that's an ammo issue) with cheap bulk pack ammo. I bought a .22 so I could fire the cheapest ammo I could find. I wouldn't put up with one that was picky.