I loved most of it, but the potion requirement means I have to check back to often to play with idle style while not having enough other stuff to do to keep me buys. I spent a lot of time flicking back and forth buying potions then sitting doing nothing, maybe give a bigger inventory so more potions can be held or just make a revival potion or something if you get one killed?
Also some way to free the slot again after you honour a retired hero, and some kind of reward for getting them to retirement level would be nice.