Basic-as-hell idle game. Basic upgrades, no fancy stuff here.
The lewd aspect of watching the cow get bigger is fine, the actual clicker/idle part is what ruins the game.

1. Very click-heavy, and my autoclicker doesn't work for some reason. I refuse to wear my mouse or wrist out, and the click sound gets annoying at 3AM.
2. There's no save (at least on the website. Didn't download the game.) Since the game's fairly long, this is pain.
3. Balance issues with the upgrades, some great, some not so great.
4. There's no offline progress at all.
5. The game PAUSES if you change tabs or if you do other stuff on your computer. You have to sit there and stare at the game. (Again, only played on the website, dunno about the downloaded version
6. You have to manually sell milk, which doesn't really affect the gameplay at all other than making you guess how much the milk will sell for, click SELL, then realize you need some more.
7. No multiplicative upgrades as far as I know, everything's just additive +1 to this, +3 to that.
8. No tiers for the upgrades, meaning no boost and no special unlocks at 10, 20, etc., and there's a point when upgrades feel useless or boring.