If I had to say something negative, I would say that I am surprized that my FPS skills are so useful in the game... I don't remember them being so useful in SS2 (probably never enough ammo)...

I have gotten to Hephaestus and I have to say while I have to keep an eye on ammo, and it gets tight sometimes, I have never really run out... Mind you big daddies take a lot of killing, but using the security systems to your advantage combined with shocking/freezing the big chap really helps...