Rating 2/5 since I didn't play for long, so maybe it gets better later...and it's still not the WORST I've played even if it doesn't, but this really does feel like a 1/5 for me personally. I've simply never enjoyed when your income in a game is random, it has NEVER been fun for any random portion of my inputs to just...not do anything! And here we are again, where sometimes the game just decides that that last click gets you no money, because reasons. (Even if the smallest payout were increased so that it's still a profit, having random variation in income has also never really been fun, since it leads to waiting to get whatever the jackpot is just to get enough money to afford anything. Long periods of waiting to get to do something aren't fun, and making that waiting time random is...why do people do this?)
Aside from that, the upgrades only show their cost when you mouse over them, which is a very frustrating developer oversight, frankly, it makes keeping track of what's affordable next absolutely miserable. (I don't know if it's possible to do italic text on this website, but that word really needs the italics for emphasis!)
So, 1/5 for me personally by feel, but more like a 2/5 for people with more tolerance for this random bullshit, I'd imagine, since the game still isn't great even with that part aside. I've played through some games with random income before, but this game didn't succeed in making me want to do the same.