I have an FNH FNP45 Tactical and it's thoroughly badass! Extremely accurate, soft shooting for a .45 and as reliable as death and taxes. It has a threaded barrel and extra tall Trijicon HD sights that are visible over the top of a suppressor. My Surefire X300 Ultra fits it perfectly. I can't think of anything legitimate to criticize about the gun save the size- it's a bit big to carry, but of course I knew that when I bought it. Right now it's my main HD gun.
The sucky thing is that there are basically no mags out there for it. FNH has been OOS since the gun game out. However it did ship with 3 mags. I think all of the FNH's do.