Lords of Waterdeep is an awesome game and so are the two expansions included in Scoundrels of Skullport.  While I think that the game becomes 'crowded' when trying to use both expansions at the same time, they are great additions whether used separately or together.  The corruption influence adds a nice mechanic to the game that tends to bite greedy players in the end.  The only minor issue that we have with the entire system has to deal with inadequate scoring and building tokens.  We regularly exceed 200 points before the end game (and >300 rarely) and have had several occasions where there were not enough building owner counters.  Neither are deterrents for such an excellent game however.