When it came out, I didn't bother with Neverwinter Nights. Bad solo campaign, focused on multiplayer and user-made stuff before I had a proper home Internet connection (dialup, ugh...), and ugly blocky graphics when coming from the Infinity Engine titles. It all screamed 'meh'.
Picked up the EE on the cheap a while ago after looking into it and seeing the availability of both premium modules of better quality than the original campaign as well as a lot of player-made modules to pick from on the Vault. And damn... I feel like I fell down the rabbit hole... Now, the graphics still have the engine's blocky style, and the awful UI takes some getting used to, but wow, I'm absolutely amazed by the quantity and quality of player-made modules, from small short adventures to full blown 50-100h campaigns, some completely open ones, some with pre-made characters, some focused on a given race/class...
I'm at the point where after completing another module, I toy with the idea of playing another game for a bit, yet inevitably end up downloading another NWN module. Waiting that long paid off big time: the game cost me €4, and I'm drowning in mods.
The idea behind NWN was always better than its execution, IMO. NWN2 was better, but that's not ever likely to be remastered.