The base game is a great, laid-back, fun game to play with friends to kill time. This only improves on that, but does so in a few key ways. With the addition of a second bonus for each key category, you'll feel like you're accomplishing more each turn which keeps you motivated and having fun. The ability to add in an additional player with the dice included in the expansion is also a very nice touch.
If you even remotely enjoyed the base game, this is an expansion that will not hurt the game for you at all.......it's truly more of the same, good stuff!