Been shooting one for about a year. Ammo is expensive if sourced in Canada.
The gun is very, very accurate for a factory gun. It is said to be one of the most accurate factory / service grade guns ever produced. I would have to agree. I've been shooting it a bit in PPC Duty competition and it's been spectacular.
I think one of the reasons that it's so accurate is the ammo is high quality and has strictly controlled standards. Recoil is about half of a 9mm. Gun is very light. The trigger has a bit of initial creep but then breaks very clean.
Quality. These units are all made in Europe and it shows as their fit, finish and tolerances are very tight. The grip is a bit big or long but the back is kind of flat and makes for a very solid hold in the hand.
Reliability, nothing short of spectacular, never a malfunction of any kind. Probably due to the high quality factory ammo. I'm saving my brass and was going to reload. I got a bit nervous about this plan after seeing some of the KA-Booms out there. Some of these guys claim they were shooting all Factory ammo. I don't believe everything I read on the internet though and I'm willing to bet most of these fellas are being less than truthful. The gun also runs extremely clean, I mean "freaky" clean. I'm using the FN Factory ammo and it must have a very clean burning powder because it's the cleanest running pistol I've ever, owned, shot or seen outside of Air Pistols.
I have several handguns including 2 Sig Sauer X-5's. I keep going back to the Five Seven because it (I) shoot's it better than either of the X-5's.
Get one if you can afford the ammo, I'm more impressed with it every day that I shoot it.
Rich