This is something we addressed in interview for the New York Post article last month. Around 5% of our customers pay with bitcoin. Some pay exclusively this way, others do it just for the experience of it.

We use a Lightning wallet powered by Zeus, connected to our own node. We discourage on-chain payments because of the confirmation time, however, we've occasionally accepted them in certain instances, such as when someone wants to throw down a large bar tab in advance.

We aim for a payment experience that's as frictionless as possible, because our bar gets busy, and we need to train the staff on how to process these payments. Nothing slows down a bar quite like waiting up to an hour for a fully-confirmed on-chain transaction.