Good but not idle at all
It's good good game and very similar (clone?) with many others. It's IDLE in name is very misleading, just because you get some resources offline does not make this game idle, thats why 3stars only. You have to be prepared for about 40-60 minutes activities daily. If you are f2p player even more while you will have to watch ca. 30 ads daily to keep good progress. UI is good but could be much better to speed up leveling items, pets management, etc. there is some space for improvement. Too low exp gain forcing you to pay to get more or just stick with 6heroes.