Throne of Bhaal was terrible. Way too much time and resources went into the megadungeon rather than the actual story and gameplay of the conclusion of the saga. Lazy placement of +4 weapons into the basic inventory of every merchant instead of the unique and fun ones with interesting and unique descriptions and histories to read, general lack of sidequests (seriously, there's what, like two?) incredibly boring and empty towns bereft of exploration or things to do in general which was particularly dissapointing after coming from BGII, which improved on the 'big city' of the previous game with the spectacular Amn. Lazy 'summon party members' mechanic instead of organically meeting them in the world like the other two games. Essentially no player choice outside of the final scene of the game, romance epilogue's that don't take into account your character's alignment, and that of your partner. (seriously, you can get some hilarity reading about how charname -god of murder, and Annomen's wedding being attended by angels) Generally an extremely linear and uninspired plot. and a relentless push with high level enemies and xp being handed out like candy to push you towards the extremes of high-level play features introduced with the expansion when it should have slowed down and given a more measured experience. (seriously 'immunity to magic weapons' is a reward you can get in BGII, but it's completely useless in ToB because every enemy down to the lowliest conscript is packing magical weapons)

ToB was a huge disappointment. When Beamdog was working on the games and I heard they'd be adding new content, I had high hopes that they'd be doing a pass over the ending parts of BGII to polish things out and maybe give back some of the cut content, and had my fingers crossed for an overhaul of ToB. Pretty disappointed how that ended up. ToB is a real black mark on an otherwise stellar series.