Gave this a go, not bad, but not particularly good in my opinion. I couldn't increase the size of the game. When I play a game, I want my game to be full screen. I'm not sure if it covered 50%. Decent enough animations, but game play is just: use a machine on her until you can afford the next one, then wash and repeat. As
@xerxesmanflayer mentioned above my post said, it doesn't take long to get all the scenes. Play it once and you're done. There is a teaser for a 'Testing Garden' stage, and the ReadMe file suggest that there might be updates to this game. Fix the game so I can go full screen and I'd try out the upgrades, otherwise...meh.