I bought one before the madness. Initially I really liked it. Monotonously reliable. It is sufficiently accurate. I did the trigger from that guy in Germany, and a couple minor modifications to get it to perform as I wanted it to.
In the end, I realized I just don't really care for the 223. The rifle seemed heavy for what it was. Optics was a frustrating experience, as one would think with the rail on the receiver there would be a plethora of optics for the rifle, but the dimensions of the thing were such that it was best with the iron sights, as the optics designed for the AR15 don't really work as I would have liked.
So. I found a SVT40 and sold the SIG. Absolutely nothing wrong with the rifle, but subjectively, it didn't trip my happy switch.