I am already back in Helsinki, but I must recommend a Vietnamese restaurant called XU which has recently opened in London's Soho. They serve the most delicious food (I chose clams, prawns and chilli crab from the menu) and have put a lot of effort into everything they do starting with the logo and customer service.
One my of closest university friends, Candace, always knows where to go, and her recommendations never disappoint. This gem is definitely worth booking!
30 Rubert St, Soho Chinatown, London W1D 6DL