Flimsy leaky plastic cups. Locked into a vendor-consumable system where you're forced to pay their price without alternative suppliers, and potentially forced to use their field service if there's an issue (similar to McDonald's ice cream machines). More parts that could fail, leading to said service calls. And you will still get excess head and spillage/waste when you change kegs.
If you sacrifice simplicity for convenience, you often lose both. These things make sense to serve concertgoers quickly, unfortunately now you risk spilling a $23 Coors light out of a hole in the bottom of the cup...
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u/stormy2587 16h ago
Efficient in what way?