London: Sushi at Dinings
If you're looking for ambience, glitz and a good crowd then you won't find it here. But the sushi is indeed very very good! Plain stuff like spicy tuna taste divine, and other more complicated options do so too.
Located in a mews street just off Marylebone Rd, Dinings is the perfect place for a solo dinner by the sushi bar, unless you can find some very good company to share this insanely tasting sushi. Whatever you, make sure you get a reservation very well in advance.
Tip: Sit at the sushi bar and avoid the stuffed room downstairs. Make sure you ask for the day's specials!