Should be a winner
In the world of .45s, SIG's P220 leaves a lot to be desired in the capacity department. SIG is only offering 8+1 (10+1 extended) with their P220 when other brands such as Glock, FN, HK, and others offer 13+1 and higher. For SIG, not having a higher capacity .45 has been a weekness in their lineup for years.
I carry a Glock 21 at work, not a huge fan. I'm not a .45 fanatic, but I do plan on personally owning a .45, and I had dismissed the P220 a long time ago solely based on its limited capacity. I'll definitely consider the P227.