I own one in .40, I love it but it needs a bit of finishing. First, it's really picky for ammo so I've developed my own load so it would not feed-jam. Then it needs to be lubed up when pulled out of the box as it usually comes pretty dry. The magazine well needs a bit of lining so the mag would not wiggle.I find the ejection opening a little too small, probably ok for 9mm, just barely so so for a .40 but I don't get how the .45 round can perform reliably. I love the accuracy of this toy. Put a 4x or so magnification scope and 100m/y is a breeze.
Also, I've printed the # 72 bulletin from Canadian Firearms program regarding magazine capacities, just in case you get pulled over or whatever. Section 4 clearly describes the 10 round Glock pistol magazine used in this rifle is legal. It may be a grey area for not fully familliar LEO and from personal experience, people like us, we could teach your average street cop a lot about firearms.
Good luck and safe shooting