I've never had a FN so how do they compare to Walther's or HK's? Any information would be helpful.
In my opinion, they don't compare as highly.
I like the Hi-Power, but I believe all of their polymer pistols from the Forty-Nine to the FNS have had design related issues as they were introduced in the market.
The FNP had issues with the sear housing cracking and causing the pistol to stop functioning correctly.
The FNP45 had issues with the trigger pin coming loose and causing the pistol to cease function.
The FNX had multiple issues, with magazine spring failures after as little as two weeks just from keeping the mags loaded. An issue where the trigger would not release the hammer in the DA trigger pull if the pistol was left in the sun for a matter of minutes. An issue with loose backstraps. Etc.
The FNS had an issue where the trigger could move forward and lock the pistol up.
I'm sure I'm forgetting quite a few more issues with their polymer pistols. I was one of the first to buy an FN FNX-9, which had a lot of issues, and which is the reason why I'm not very interested in their newer or older polymer pistols. I like their rifles, and I like the Hi-Power, but I don't believe they do enough testing before releasing their polymer pistols in the market.