Descent 2 is a great game, but one thing people tend to forget. In Descent, the GM IS ACTIVLY TRYING TO KILL YOU/MESS YOU UP/MAKE YOU FAIL. It is NOT a 2 person game. All the missions have a "... if the players win this happens..." or "if the gm wins, this happens..." I have heard that many folks feel the game is angled for the players to win, but our GM has gods own luck rolling defense and getting cards that wreck our group. Our group has a 50% win rate, and our wins have only ever been on the side and optional quests, and I am a shitty looser...
Again, its a great tactical game. Everything you will need in one box, and if you like it, I think the 3rd big expansion just hit and the materials are awesome high quality, and it even has high replayability. Missions branch in different ways, you have 2 of each type of class. But it is also a definate, killer gm game =P