I took my friend visiting from the UK to UOBEI Sushi in Shibuya. Always when I go it's crowded, but the waiting line goes down quickly. The sushi is so nice, and so cool with the train that brings the sushi. I recommend this place, as they have an English menu too. Uobei Sushi http://www.genkisushi.co.jp/search/map.php?id=232 My last time having sushi in Shibuya. https://youtu.be/phit-vWnapw?t=2m4s