5 stars to 1!!!!Dont bother playing if you ain't gonna spend money. Was great to begin with, easy to get keys, gold tools. Edit November 2021 so I gave the game another chance. I tend to now mainly focus on the special effects as it takes forever to complete or upgrade on home island. I think the developers need to look into that and the amount of products you need to make to build or upgrade stuff. I'm not on level 30 odd but still haven't upgraded many buildings past level 1