Sushi Hiroba 50-54 Kingsway (near Holborn station) London WC2B 6EP www.sushihiroba.co.uk/ +44(0)20 7430 1888 The Cost & Date: Lunch for 2 was £12ish. Dinner for 4 was £50ish I think. Food & Drink: For the lunch session, I had salmon maki. For dinner, I had the soba noodles. Tap water for drinks. Setting: Nice decoration. I like the ladies washroom. The sushi bar has revolving mechanism. Service: Nothing to complain or rave about. Story: Both…