I just finished running The Twilight Tomb for my players. Yes, we are still playing 3.5e. I thought it read better then it played. There was a lot of information contained in the pages that made it a fun read for the DM, but I found difficult to include in the story without narrating stories to the players that their characters had no possible way of knowing. It was combat heavy almost to the point of a TPK (total party kill) but offered little reward. I was a little dissapointed with it over all. My players also found the boss fights anticlimatic. Have you ran this module or one like it? Care to share your experiences?