"Sumi is a high-end Japanese spot, but instead of dressing stuff up with truffle shavings, it lets the top-quality fish speak for itself. The single-sheet menu is mostly nigiri, sashimi, and handrolls, with an excellent sesame seaweed salad here, and a £70 wagyu striploin there. But focus on the nigiri and temaki. It’s one of London’s best sushi experiences. Just come prepared to spend." - heidi lauth beasley, jake missing, rianne shlebak, sinead cranna