Specs are quantitative aspects of the option such as the price
Pros
Pro
Tons of themed versions
From Monty Python to Adventure Time, there's an edition of the game for everyone. Regardless if all players understand the references and inside jokes, they're still fun to play.
Unlike many games, the purpose of this one is to change the rules as the game goes. This results in very creative strategies, as well as sudden game changers.
With more players, it can sometimes take a lot of time to get to your turn. Players often want to read the description of the card(s) they draw to make sure they understand how they're used, which often slows the progress of the game.