So far, it has been pretty much what I expected. Which is to say, I'm really enjoying it. There are a few minor annoyances for me, but plenty of improvements. I find the actual shooting mechanics to be a lot better, like if I aim at something, the bullet might actually go there. The thing that probably bothers me the most is that it doesn't tell me what an object weighs before I pick it up. Random junk is a lot more useful in FO4, so that would be a really, really helpful thing.