Really enjoy the new encounters and what they bring to the game; nice fat encounter stack will nicely stave off any feelings of "sameness" after a period of time.
The character powers are great; should have been part of the base game, but what can you do?
The first expansion to Cutthroat Caverns is a must own because it introduces more character depth to the game without changing the gameplay. Each character now has a special ability that can be used at any point in the game which adds an extra element of depth to the game. Enjoy!