I just picked up an FNP-45 at my local dealer today. It's the two-tone variety with stainless slide, just like the pics above (great pics, by the way!). The grip fits surprisingly well in my medium-sized hands for a 14-rounder. I like the ergos and the grip angle better than my Glock 21SF. The ambidextrous "safety" is really just a decocker, which doesn't bother me a bit as I'm a big SIG fan and don't believe in the need for an external safety so long as the first shot has a traditional DA trigger pull. The machining inside the slide is primo. The inside of the frame looks very much like a Glock.
The DA pull is very smooth and compares favorably with my SIG P226 Navy, although the FN pull stacks more than the SIG in the second half of the pull. The SA pull is very crisp and is similar also to the SIG, but the take-up is noticeably heavier, as if FN took a SIG trigger mechanism and put a heavier trigger return spring on it. The trigger reset is about the same as a standard P226 but of course is longer than the SRT on a SIG Elite. Field stripping is identical to a SIG. The magazines (3 included standard) are steel with a straight weld up the back of the mag.
I'm anxious to get it to the range. So far, I'm extremely impressed. I would sum it up by saying it's like FN took a Glock receiver, fixed the goofy grip angle and added interchangeable backstraps, exchanged the Glock's "safe-action" trigger for a DA/SA setup with ambidextrous decocker and slide release, then put a SIG slide on top. The barrel looks like a barrel; the proof will be in the shooting.
Oh, and did I mention how huge the gun case it is in? It's bigger than a SIG blue case and could be used for carry-on luggage if you hollowed it out! Wouldn't that drive the TSA crazy?