If you own Cloud 9, probably no need to own this... though they play different and Montgolfiere is not a push your luck game. It's just that, well, this is totally random, and in fact when we play with the random player variant, the random player tends to do as well as anyone.
I second that.
The games are not very much alike. However, when I bring out Cloud 9, people have fun and ask to play again. Montgolfiere, on the other hand, resulted in threats to my health.