Tabelog is your friend:
http://tabelog.com/tw/bestrst/2014/tokyo/
For me Sushi Dai is "ok" for a 1-ish hour queue if you show up super early. If you show up later in the morning it can go up to a frankly ridiculous 3-4 hours. I'd say the sushi there is amazing
given the price since other top tier sushiyas are easily 3x-8x more expensive.
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KrisFlyer Miles Redemption Values