A Worthy Sequel!
Just like Fallout; everything! And this one is bigger; has more quests, weapons, perks, npcs... Maybe the best thing about Fallout 2 is the better control on the npcs. You can give them tactics, better weapons and most importantly; armors. This time, they have more quotes and sometimes they talk to each other. Get Marcus and Myron and you'll understand what i am talking about! Their comments are hilarious!
Just like Fallout; bugs...And some people might find the less darker world of Fallout 2 a bit annoying. Bigger cities, organizations, people walking around with better gear compared to Fallout; this all create an illusion of world of Fallout is getting better. Actually, it is not (according to Fallout Bible at least). Also, there are some easter eggs and in game material that can bother some people because they don't fit in. It's not a big problem for me but still, it is a problem.
The Bottom Line
Fallout 2 may not be as good as Fallout in some ways but it has definitely more replay value. Don't miss this one!