Sushi Tetsu is one of those rare places that reminds you why you go out to eat. This welcoming seven seater in Clerkenwell, run by an amiable husband and wife team, serves unpretentious, high quality sushi and sashimi to an appreciative audience. As you step behind the noren, hiding prying eyes from the street, you emerge into a cosy bar much like what you would find on the back streets of Japan. When I visited, the atmosphere was buzzing with happy punters, with the bubbles of conversation occasionally popping to be replaced with a soft groan of happiness or an appreciative nod to the chef, acknowledging a wonderful shared experience. It's the best sushi experience you'll find in London.