I purchased this as a Christmas gift for my 5 (almost 6) year old, and it was an instant hit.  We played the first few hands facing up until we got the hang of the game, and became familiar with the cards then we turned the cards face-down for normal game play.  The game concept is easy - score the lowest amount of points to win the game.  You have to rely on memory to keep track of the cards you have, but it's also a matter of luck in the cards you get in the game.