I purchased an SP2022 a few years ago and, at the same time, purchased a Beretta PX4 Storm. I shot the Sig much better but, crazily, sold it back in Sept in a "purge" of a few handguns. Fast forward three months and I realized that was a mistake, so I just purchased ANOTHER SP2022 in 9mm.
I've owned two P226's but, for me, the SP2022 shoots better in my hands. I've sold both my P226's as I don't see what it does that an SP2022 won't do for me better.
Not to be self-serving, but I have written about it a couple times in my blog in case you are interested.