Unfinished? I don't think so, maybe unpolished, yes. Basically every game out since 2000 is supported by a pletora of patches and hotfixes, thats due to the complexity of games in most cases, and bad programming (pathfinder for example).
Obsidian has improved the game other than fixed various bug, but nothing game breaking. When it comes to like something its a matter of personal preferences, its pointless to discuss.