Heya Silent,
My first advice would be to be certain about why you want this firearm: it's definitely something of a (fun!) niche product, but a mite costly ($1100 naked) and you can pretty much forget shooting at anything beyond 100 yd. With zero at that range, your bullet will drop by about five to six feet (feet, not inches!) by the time it hits 250 yd (even counting the extra 200 ft/s you get from the 19 3/4" barrel). That's actually one of the reasons I got this gun: I like the shorter danger zone behind my targets when I plink on crown lands. And I wanted a caliber bigger than a .22, something that could bring down a furry larger than a chihuahua if I needed to do so while hiking.
I got mine not too long ago (only have about 500 rounds through it), and to date I like it a lot. On the plus side:
- it's short and light (33" and <7 lbs makes for an easy carry in the bush),
- controls are ergonomically fine and ambidextrous (you have to set them to the side you prefer),
- it has low recoil (9mm Luger impulse vs 7 lbs firearm),
- it uses 10-rounds mags (12 if you can find Beretta 96 mags in .40 S&W),
- it won't break your bank when shooting (9mm is about $0.30-$0.35 a round for FMJ).
Also, it's reportedly very reliable, despite some surprizing parts made of plastic (the hammer!). To date, I fed it Winchester white box FMJ 115gr, Winchester Super Clean JFP 105gr, CCI Blazer Brass FMJ 115gr, Remington UMC FMJ 115gr and Sellier & Bellot FMJ 124gr with no issues. Maintenance is easy enough: one thick polymer pin to push through (it's the oval thing in front of the trigger guard) and the upper and lower slide apart. Pull the breech block out and wipe. And you can definitely accessorize it: I made Mall Ninja Club Life-long Honorary Membership from mine!
On the minus side: I make no guarantee about its accuracy. I'm still trying to get used to it and my groups are absolutely nothing to write home about. The problem is, I still can't figure how much of the issue is inherent to the gun, how much is the cheap factory ammunition and how much is just me shooting like a spastic squirrel (likely the latter). Best groups I've done to date are only about 4-5 MOA. One thing I'll say is that the trigger is rather stiff (feels like 8 pounds+). Oh well, I'll just have to practice some more (oh, the hardship!).
One minor point about the mags: you don't "roll" the rounds into them as you'd do for an AR-15 mag, you have to push and slide them in. You'll want to use the loader that comes with the carbine because it really makes it MUCH easier when you load those last couple rounds!
Another minor inconvenience is that I can't find butt stock spacers in Canada (I wanted to try lengthening the pull a little to see if it helps): they're plenty common in the US, but no one south seems to be shipping north and no one north seems to be carrying them. Not a problem unless you have arms like a gorilla, though.