Mine was one of the only guns I never modified anything in (Except the grips, but they dont count. I go hogue all the way with every gun)
I was amazed with the acuracy of mine.
I even loaned mine to an ipsc shooter for a service pistol match and he was pissed that he spent more than twice the money on a real sig.
I suppose there is only one drawback that I know of.
Sig has redesigned some of their springs, IE the trigger bar spring and a couple others I think.
They say on their website that the old design was more prone to failure.
That said, I never had a problem, of any sort with mine, and it even came with a spare set of springs. So If a problem ever did crop up I was well armed to take care of it.
I want another one.
Anyone want to trade me theirs for a CZ 52 pistol?