Sushi Garyu - Crouching dragon, or one that yawns?

I came across Sushi Garyu at Yotsuya San-chome when I was in pursuit for lesser-known yet highly-rated sushi restaurants in Tokyo. This restaurant is ranked among the Top 30 on Tabelog, consistently above even some of the more famous ones in town, so I was curious to see if there is any truth to this, and I asked the hotel concierge to help book a seat for me to check it out one evening.