Bad Beer is a mixed bag - I enjoyed it a lot for reasons depicted below, and I found it to be inferior due to reasons depicted below. In short: It's short.
Plus:
The setting is refreshing: A British pub. Some old school homebrew (...) games play in that setting, but trust me, this one's fresh.
The story triggered my curiosity. All of a sudden the beer in your favourite pub tastes horrible. Something supernatural? Investigate!
The room descriptions are atmospheric.
Minus:
It's really short! Basically it's one puzzle. So sad!
For me, the end didn't explain a lot of what was going on. I could vaguely retell you the story in general, but what exactly has been happening, remains a mystery to me.
Given it's so short - a bit more of implementation would have been fine. Some additional topics to talk to the NPCs about, a few more items to examine... And one or two additional puzzles of course!