I really like how this idle game has a lot of planning involved as you unlock more buildings. It spices it up from the usual "buy the next cool upgrade" or "choose what thing you want to specialize in" formula.
I agree with the earlier person, please don't quit your job for the game. I know you want to improve it as much as you can, but I'd rather it not be where this game suddenly stops making you money, and then you have to scramble to find a job again.
Although this game is very enjoyable, I wish that when there was a large number of cards on the field that it put them into two rows for better visibility.