I had one in .45. Effective range was 100 yards tops, 50 was its' sweet spot. Ate any ammo I could throw at it...it was extremely reliable. Ergonomics were fantastic, it really was a comfortable, intuitive rifle to use. I like the platform a lot. Trigger isn't great, but Sierra Papa has trigger kits that supposedly make it much better.
Ultimately ammo costs and its' limited capacity (8 rds.) drove me nuts, so I got rid of it. Sierra Papa makes a mag extension kit that increases capacity to 15 rounds (if I remember correctly) but it's pretty expensive and protrudes from the magwell. Also - mags (Beretta Cougar/Stoeger 8045 mags) are expensive, the cheapest I was able to find was CDNN, who wanted something like $34 a piece...everybody else was about $43 and up. In all, I'd have gladly kept it if it was 9mm.
Also - be warned, if you ever decide to sell it, you'll have a heck of a time doing so for the same reasons I got rid of mine. The 9mm version (particularly the 92FS mag version) sells very easily.
I'd personally skip the .45 version myself...the only reason I got mine is because it was dirt, dirt cheap, and was a fixer-upper of sorts. The first owner horribly painted it OD green, and I stripped it all off.