Gosh, I'd rate SIG's customer service ... uh, wait a sec -- I've never had to use SIG's customer service ... even though I've owned 10 SIG-Sauer pistols ...
Strange, I've dealt with Colt, S&W, Springfield Armory and Beretta ... but only SIG and ... uh, Taurus (yep, I've bought a few of 'em) have never necessitated a call from me ...
Does this speak in favor of SIG? Otherwise, I guess I have nothing productive to add to this thread.
I guess I'd like to know, too ... But to the OP, I'd have to that (at least based on my experience) you can buy a SIG product with supreme confidence.