Springfield makes some decent guns, I'm assuming that you are referring to their XD line of pistols, they are foreign made in Croatia and imported to the US. Early on they had some finish issues but that was a number of years ago. Their price has increased over the years but they've maintained a decent following despite lack of widespread adoption by Law Enforcement Agencies etc. There are very few departments that issue the XD/ XDM line of pistols but it should be noted that the FBI selected their line of Custom Shop Professional 1911s for use in their tactical units.
The current Springfield Armory is not the original Springfield Armory located in Mass., the rights to the name were purchased in the 70's, so if you see and ad that says "The oldest name in American firearms" that's all it is, the name, not the present company. Some people don't know this and get bent out of shape when the find out that they've been "lied to".
As for their line of 1911s, the slides and frames come form Brazil, pending on how much assembly/fitting/finishing is done in the US vs. Brazil there serial number will have a different prefix. They are all "made in the USA" with parts from Brazil, despite that they make one heck of a 1911 and in their price tier(s) they are hard to beat in any form.
Springfield also makes M1A rifles that have a cult following as well.
The company has a very good limited lifetime guarantee and a fantastic reputation for good customer service.
I currently one two products from Springfield, an XDM-9 and an older "Loaded" 1911 and have been very happy with them and would not hesitate to either purchase from them again or recommend them to others.
Now all that being said, they aren't the only game in town with those traits.
The XD/XDM line is nice series of pistols, but aftermarket parts support is lower than that of other makes/models of firearms but it is getting better as their popularity grows. The XD/XDM line feature manual safeties in the form of a grip safety on all models and some select models with an additional thumb safety. You will either like these features or hate them. If you're not sure what side of the fence you're on regarding them, think long and hard about it before you make a purchase.
Hope this helps, if you have any more questions feel free to ask.
Welcome to the forum!