I've put more than 6,000 rounds thru my X-Series guns; all flawless. I've owned two SIG 1911's, a p232 and two p239's. As you can see I've had an assortment of German and US made models. Not a large sample by any means, but I've been pleased by all of them. I do feel the German guns might be better quality, machining, etc.
I'm also into .22lr pistols. Have a couple of S&W Models 41, a Hammerli Xesse Sport, a HK4, a pair of S&W Models 422 and four Rugers. Out of the factory, my new Rugers have had all kinds of quality problems from sights falling off, to triggers so stiff I could hardly pull them. But, they're inexpensive, there are several aftermarket companies to provide precision parts and Ruger has an outstanding customer service department. My expectations of Ruger have been low, so I haven't been disappointed. My other 22's have been perfect.
SIG's are relatively expensive. The guns I purchased met my expectations, except for the magazines supplied for my X-5 L1. I'm committed to leaving well enough alone with SIG. After the p210 Legend fiasco and the magazines that don't work in my X-5,; I don't trust them to do right by a customer and won't ever buy another gun from them. This is from a consumer who has purchased more than 50 pistols in the last two years.