Simple to understand the basics, but very much fails to explain most things. I am still finding out new things after hours of play. These new things don't really enhance anything. The chests are also not working. You can't watch any ads to speed up opening times because it ways the ad failed. So you have to wait 1+ hours per chest and can't play until they open. It also unfortunately does not auto open your next chest. You can pay $3 to open one chest which seems extreme to me.