The SP2022 is a nice handgun. I was shopping for a high-cap .40 cal, mid sized handgun, and the SP2022 was on a short list including the FNX-40, Cz P-07, and the Sig P229. I also handled an USPc .40 that I really liked. After coming across a good deal, I ended up with the P229. I would strongly suggest that you consider the handguns listed here, as they are all competitive in terms of features, ergonomics, fit & finish, and overall engineering. The Cz P-07 is probably what I would have gotten if I hadn't found the deal that I did on the P229.
The Sp2022 has all of the fine features of a Sig. It is tight, well engineered, has clean ergonomics (unfortunately, they are not ambidextrous. To be fair, on my list only the FNX was ambi), and is extremely accurate. The Sp2022's slide stop is a different design than the P series, and resembles that of a H&K P30. Also, the classic Sig decocker is usually two stages--one active click at full bottom, indicating that the decocker is engaged, and a second click near the top as the hammer drops--but the 2022's is only a single stage. There is only a positive, mechanical indication of decock at the bottom of the throw, and the hammer releases immediately. This is not a problem, but it is a departure from the P series design. The trigger is very similar to a P series, with a long, heavy double action pull, and a clean single action. Many people claim that the 2022 has a nicer trigger, in that it resembles the Short Reset Trigger package that the P-E2 series handguns had. This is now a standard feature across P series handguns. All the same, it is a clean, nice trigger, with a short reset, reliable pull, clear break, and smooth action.
Right now, Sig is running a promo. You can send in papers from a new pistol and get two magazines free. These are ~$45 retail, so the Sp2022, often had for ~$400, is an even more attractive deal at $310.
If I had the cash laying around, I'd buy one right now.