Frankly speaking, there's nothing wrong with Fallout 3, especially as compared to everything else that was on the market at the time. It's a good game. It just has completely different priorities than Wasteland, Fallout, Fallout 2, or Van Buren had, or that New Vegas would later reintroduce. Sure, a lot of it doesn't make sense, sure a lot of it is pretty contrived, and it has barely anything beyond the superficial connecting it to the other Fallout games, but that doesn't make it bad in and of itself. Disappointing if that's not what you wanted, sure. But not bad. There hadn't been a game like Fallout 3 before, one that combined the freedom of a CRPG with the accessibility of a first person shooter, at least not one done well enough to become an instant hit. It struck a balance, and in doing so, it appealed to more people and captured more imaginations than ever because it made the things that made Fallout work in the first place click with people who didn't have the mindset or patience for it. That's neither good nor bad. Just different. There was still a lot of effort put in, it's still self evident that it's a well designed, well polished product in its context, but the identity of the series changed permanently because of it.