I disliked ToB, but it was precisely for the reason that I very strongly prefer lower level games and not because of any quality issues with ToB. I just simply start losing interest in a game once the characters in the game (PC, companions, NPCs) become god-like (and this has been true for all games: the DA games, TES games, Witcher, everything).
Pretty much how I feel too, though I didn't dislike ToB so much as I wasn't particularly moved by it. Also, 2e didn't scale particularly well at level 30+
