Such a coffee shop could be a could gimick , but nothing more.
At the moment there are not enough people who uses bitcoin and other cryptocurrencies, so the coffee shop is not going to have enough customers and probably going to be closed really soon.
Anyway, it would be impossible to buy coffee with bitcoin at the current network state, as broadcasting the transaction would cost about 5-6 $, while the coffee costs about 3-4$, you would end up paying 10 bucks for a coffee.
As you can see there are quite a few altcoins to choose from as a form of payment. Bitcoins are just there for the sake of it.
It would be somewhat lame without that orange blob
And having alts changes the situation drastically in favour of the customer.
I would even go one step further, with the help of some exchange (where there's plenty of alts) I could accept them all. Fees are problem no more. Its also looks as a restaurant, so I bet they serve not only coffee but also food and paying with bitcoins for the dinner for the entire family
seems like a acceptable choice.
To bad OP just posted raw picture, without any specific location details. Kinda bad quality as well, might be shopped?