My major reservation about them is it has a hammer drop safety but no double action trigger. This means you have move the safety to fire then cock the hammer. No safe way to use it as a sub for the Glock when working from the holster.
Not a bad gun. Great for a Glock lover. Very easy to take down to clean. Very accurate and fun to shoot. I have put many rounds through my friend's and if I didnt already have a Walther p22 I would get one. It tends to prefer 40 grain cci minimags for best reliability as far as ejecting. I would not hesitate to buy one.
From what I could find out they are made in Austria like the Glock.
Glock are making the polymer frame of the gun for ISSC it's why they look so much like a Glock and yet they can sale them without lawsuit.
So I believe Glock is making money on each sales.
I think the only problem you can have with them is reliability (like most .22s semi-auto).
If Glock could make a 100% reliable gun in .22 they would make one and it would say "Glock" on it.I think they dont want to look bad saling a gun who is not 100% reliable like all their other guns it's why they let another company do it and produces only the frame.
But as a plinker it looks like a good little gun.
Also it could be good to train for cheap if your carry gun is a Glock 19 or same size gun.
Hope it helps.