I live in Arizona and work for a rather well-known online retailer that specializes in tactical firearms. I picked up a SIG P229 SAS used and haven’t bothered looking back. As we are an Constitutional carry state I carry my 229 openly in a Kydex holster made by Ares Armor in California. I use this pistol for plinking in the desert, as a demo gun for customers, and have taken it to a few pistol classes. The only upgrade/change I’ve done to it was the custom Cerakote that my friends over at Vang Comp Systems did for me, they call it Midnight Bronze . . .
I choose the SIG P229 SAS as I felt the most comfort when holding the pistol in my hands plus I liked the features it had to offer. It’s chambered in 9MM and with the current generation of bullet technology and science, using a larger caliber just sacrifices magazine capacity for no real gain.
Compared with other pistols in the same size and mag capacity range, a DA/SA pistol with a decocker makes it slightly more safe with a round in the chamber, decocked vs. a striker fired pistol with a trigger safety like a GLOCK. Of course this is all just personal preference.
I own several other pistols that I carry at times; a 1911, a Smith & Wesson 9MM Shield, but my SIG P229 SAS is my constant carry companion that I trust and enjoy carrying the most.