Three branches, three enormous samples, and all of them at 4.8 or better – which is invisible and expensive
Boom Battle Bar at Liverpool Street holds a 4.8 from two thousand nine hundred and fourteen people, and it is the third one in this survey.
And the set is remarkable.
The three
Boom Battle Bar, The O2: 4.9 from seven thousand five hundred and twenty-four.
Boom Battle Bar, Oxford Street: 4.8 from seven thousand nine hundred and twenty-nine.
Boom Battle Bar, Liverpool Street: 4.8 from two thousand nine hundred and fourteen.
Which is eighteen thousand people, across three sites, converging on 4.8.
Consistency at scale is invisible
And it is one of the hardest things in hospitality, and essentially nobody writes about it, because it is not a story.
To hold the same score across sites you need the same training, the same kit, the same maintenance, the same recruitment – every day, for years, without a sustained lapse.
And the independent bar with a 4.9 from forty people achieved it with one exceptional person behind the counter.
That is a wonderful thing, and it does not scale, and it cannot be bought.
A chain holding a 4.8 across eighteen thousand people has done something considerably harder to explain.
And volume punishes
Which makes it harder still.
Every additional customer is another chance to have a bad night – and the bad nights accumulate in the average and they never leave.
Eighteen thousand evenings, and a 4.8.
Which is vastly harder than a 5.0 from twenty, and the display tells you the exact opposite.
Why the format works
An experience cannot be delivered on demand. An activity can.
A speakeasy promises the evening will be memorable, and a wet Tuesday will not cooperate.
An axe promises: you will throw it at a board. It will stick, or it will not. Somebody will win.
All of it happens, exactly as described, every single time – and the gap between expectation and delivery is approximately zero.
Which is the only thing the star rating has ever measured.
And it removes the decision
Because you cannot arrange six friends around a table without somebody having to organise it, and nobody wants to be the organiser.
Somebody books a slot. The slot is at seven. There is nothing left to negotiate.
What people are buying is the removal of the burden of deciding.
Verdict
And most groups lose
Which is deliberate, and which the industry understands precisely.
Failure has to be possible, and it has to be common, or it is not a game – it is a corridor.
The product works better when the customer loses.
Because a game you always win is not a game, and the people who came to compete need somebody to have not won, or the winning means nothing.
Which is the exact inverse of every other hospitality business in this survey, all of which are terrified of the customer having a bad time.
And it is why these numbers are so high. The customer who lost still had a good evening, because losing was in the promise.
Verdict
Superb number, on a sample that cannot be faked.
Harriet Collins is a high-output satirical journalist with a confident editorial voice. Her work demonstrates strong command of tone, pacing, and social commentary, shaped by London’s media and comedy influences.
Authority is built through volume and reader engagement, while expertise lies in blending research with humour. Trustworthiness is supported by clear labelling and responsible satire.
The precision here is almost hostile. Every observation earned, every detail researched, every footnote justified. It’s exhaustingly honest.