I have one and like it, but it's got three really big flaws:
1. Trigger is garbage (but manageable).
2. It simply does not hit primers very hard. I've never quite understood why - short firing pin, weak spring, whatever. You'd think SiCo would have fixed this a ways back, but they never seemed to have gotten a handle on it.
3. It is not a super efficient at quieting things down.
I don't see it on their website anymore, which makes me wonder if they're done with it, or if there's another version coming out.