About 5 years ago, I owned a couple in 40.
They were originally built for the 40 and are like tanks - seriously. You are
not going to break that pistol.
The newer models have a standard accessory rail and redesigned trigger guard, sans manual safety I believe.
The only real problem I had was that the web of my hand is so fat (I used to walk away from every IDPA match bleeding like a stuck pig when I was shooting Glocks - which most folks don't understand unless they have fat hands), it became fairly uncomfortable in a session of shooting that was anything over 100 rounds. The tang simply dug into the knuckle of my thumb to bad.
There ain't anything out there with a lower bore axis - even less than a Glock.
The sights are a bit to get used to and I never really warmed up to them, but that's an easy fix - new sights.
They were being blown out for a little over $300.00 and are about one of the best buys out there. There was a time when parts availability was sketchy, but I think that was resolved a few years ago.
If they weren't uncomfortable for me to shoot, I would not hesitate to own one again.
You can find more info here:
http://www.steyrclub.com/vb/