We were very disappointed with Japonais.  The sushi's quality is just ok and way over priced ($8-$16 for each piece, not an order of at least 2 pieces).  The Robata was worse- unimaginative and again over priced (an order of shishito peppers consisted of 4 small peppers on a skewer with no sauce or bonito flakes).  Go to Nobu instead.