[Scatty]

It can be fun, and a lot especially in the second addon and it's unofficial fan-made campaign which kinda continues the story of Hordes of the Underdark - The Gods Themselves Trilogy. In a nutshell, Neverwinter Nights is Baldur's Gate with less fun and story, and more and better graphics. And smaller game world (actually no game world as interconnected as it is in Baldur's Gate games) and smaller area maps.
Just give it a try and don't ask others too much, you only know a game when you try it yourself