First thing about the game, very, very addictive. Every move you take, every attack you do, just pulls you more in to the game. It is a multiplayer game where you work as a team, here called as "clan". You attack, defend, win, lose, everything with your peers.
There are many different levels in the game. You have to keep upgrading your village. Over all, the final verdict is that if you have a lot of free time, download it right away! It is a good pass time activity.