Welcome to the forum. Above is the link to the sub-forum specifically devoted to discussing the weapon you're asking about. You should find more information there than you will ever need or be able to absorb. Good luck.
I have a two year old 9mm tactical FS that is accurate and trouble free. No failure to fire or feed with good magazines. Decent sights from the factory, and an excellent factory trigger. Great gun for the money, and as a good gun as can be purchased for a much greater price.
I paid less than $400 a year and a half ago. I have a couple thousand rounds through it and no malfunctions that weren't mag related. This thing shoots better than I do and has proven itself repeatedly. Sure the finish isn't perfect, the tolerances are a little loose, and the GI sights are...well....GI sights. However, it worked in WW1-WW2 so for 1/3 - 1/2 the price of a Colt or SA I think it's a pretty good buy.