I bought my Sigma 'cause it was CHEAP. But after breaking it in, I now love it. I hate to admit it, but I shoot the SW40GVE better than my Walther P99 AS. It never malfunctions, it's light and pretty much corrosion free, and hold 14 rounds. And the ergos are great.
I put in a lot of dry firing/shooting to get the trigger just right on the Sigma. But I'd still trade it for a loaded Springer.
Actually, I'd throw in something to boot, so my friend would not hold it against me later on.