I have owned my FX for over 2 years now and love how comfortable it is to drive (my first trip was 1200 miles and I felt as fresh stepping out of it as when I had got in!).
The engine is great and has plenty of power.
My main gripe is the 7 speed transmission... it sucks.
I often find myself trying to pass other traffic and putting my foot to the floor and nothing happening for 1-2 seconds... once you get passed this point fine, but that lag can seem like an eternity.
I had it re-flashed and that helped a little, but this is definitely something more fundamental..... But if they fixed this I would definitely get another.