I will now appreciate the work of the barista at my local coffee shop even more.
Seriously, the mechanics are SOLID. I got hooked almost instantly, which is great. Everything works fine, and everything became hectic once I ran out of my pre-made coffees and milks. I understand that it's self-imposed, but still - it is quite an achievement.
I think it can become very fun, gave me Viscera Cleanup Detail vibes. Looking forward to more updates!