5 stars: This game would have gotten a 5 star rating from me, if there was a way of leveling up heroes faster and more conveniently than tapping on them a couple thousand times. P-p-puh-leaaaase add something like that. Like holding down the level button or having the option to level in segments of 10 or 50 at a time? That would be great. *Edit* Im dumb. Found out how to adjust levels. Five stars!
4 stars: It has its ups and downs. It makes you figure out how to take full advantage of everything at your disposal or fall off in power and such. However, things tend to get drastically slower as you go if you don't figure out a good strategy, so looking up a guide or asking people in a clan might be important for you. Aside from that, a good time burner.
4 stars: Good game that I have come back to many times over the years. Game is well updated, however once you get to late game it really needs a better way to assign relics to artifacts though. Something like setting a target % goal for each artifact that automatically gets assigned when you prestige would get that last star (have this option be togglable within the settings when it's not desired).
3 stars: Picked this up on a recommendation from a friend, but it is very sluggish - the achievements and ads for bonuses don't always trigger, which wouldn't be a terroble thing in and of itself if it didn't come with 2-3min of not being able to do anything while you wait for the game to decide if it's going to cooperate o...