From what I've heard, it's a compact single stack 9mm, which basically looks like a shrunken 226. They appear to be a bit rare nowadays. I never see them at gun shows, for instance.
It gets high marks from those that claim to be in the know, but I don't see much functional difference between it and the 239, other than cosmetic. I've never owned one, of course. Maybe my opinion would change if I ever shot or owned one.
I'd just like to find one and see what all the hype is about.