I have about 15 hours in, I have some small complaints about the game, mostly how they streamlined stuff and some other things but I'll save discussion on it to avoid spoilers.
The game is so massive. Size wise it's smaller than Skyrim but it's not loaded with giant mountains and hills like Skyrim, so there's probably as much if not more accessible area.
Target is selling Nuka-Cola Thursday, hope I can pick some up.