Full disclosure, I'm one of the Tac-Sol sponsored shooters so I'm a bit biased
That said it runs 100% unless the ammo is a dud. I've had it for 2 years now and have about 5,000 through it. It was on a Caspian single stack frame in the beginning and when the 20111 mags came out it moved up to the SV. The mags are great, all machined aluminum, you can easily disassemble them for cleaning and in the free states they hold 14. It also locks open on the last shot. I use Federal Automatch for matches but it shoots the bulk stuff fine its just not a reliable ignition wise. If the upper is clean and oiled and you shoot decent ammo it functions flawlessly on both frames.
I thougth about getting one, but then I Pimped out my MkIII. Maybe next summer.