In summary, if you like GalCiv3, you will like this expansion. The primary problem with it is simply the lack of new material. Other than the Bazaar, this has the feeling of a well-done couple of DLCs. Not really worth the 20 bucks except for fans of the series.
A TBS with a sense of humor doesn't come along every day. Don't mistake light-hearted for light-headed, however - "Warlock 2: The Exiled" is a solid, if limited, game. It can provide hours of fun in an attractive package without overwhelming the player with detail.
The original game is a classic. The "Enhanced Edition" is a near-clone, with some additional content. If you haven't played it before, or would like a deep RPG to put on your tablet, this is a good buy. It is $20 for the Enhanced Edition vs. $10 for the original + mods (some assembly required) – give these guys your money so they can make "Baldur's Gate 3".
Fans of CivBE will want to pick this one up. While nothing groundbreaking has been added, the new features flesh out some gameplay from the original, and add the new frontier of aquatic colonization. Perhaps a little heavy on the micromanagement, the overall pace of the game retains that "one more turn" quality.