First off, the music is kinda annoying and gets on your nerves after the first 3 seconds. I just want to get that out of the way immediately. Secondly, this is not a bad idea for an idle game. Graphics are simple but still charming. The rebirth gives a pretty good bonus in exchange for restarting. The medals are pretty nice since you made them based on kills rather than long EXP grinding.
To any new players that are in need of tips, here are my two biggest advice. First, spend any all points you get on Critical Chance. Screw anything and everything else until you max that crap out. Second, the best way to speed through the game is to save enough gold to buy all 3 potions simultaneously and be ready to spam that arrow key to speed through the enemies.