The AV Club has kicked up a review of Mask of the Betrayer. Handing it a grade of B-, the reviewer indicated that, based on the price, it was a game to get. Additionally:
Beyond the game: The team at Obsidian includes key players behind what's arguably the greatest modern role-playing game, Planescape: Torment. While Mask Of The Betrayer doesn't measure up, it's rich with brainy dialogue, unconventional characters, and piles and piles of dead stuff.
Worth playing for: Mask Of The Betrayer picks up from the original Neverwinter Nights 2, explaining what happens after that game's abrupt ending, though the two stories are so dissimilar in tone and content that there was no good reason to tie them together.
Frustration sets in when: Early on, your character is cursed with a "hunger" mechanic that has to be managed throughout the game. This has annoyed many players, but it's easy to deal with once you get the hang of it-so ultimately, it's kind of pointless.
Final judgment: An eerie, enthralling role-playing game that never settles for a cliché.
Head over to read the rest though, honestly, there's not much more. *grins*