Our group of four was excited to try this place for dinner on Saturday night - the atmosphere looked cool, and the menu looked awesome.  Plus, we were staying at the Mirage and we could stay on the property.  HOWEVER.  Our excitement didn't last long.  \n\nThe ambiance was fine.  Very cool loungey vibe.  They were pumping club tunes in the background.  It was not super loud, so it wasn't offensive.  It seemed most patrons were relatively snazzed up in terms of dress code.\n\nThis was our third day in Vegas, so by then, I was already pretty desensitized to the inflated prices all over town.  Japonais definitely kept with that theme.  My husband and I shared two pieces of uni sashimi, seafood tempura, kobe carpaccio, dessert and two cocktails and the bill came out to about $100.  The food was good. Not earth-shatteringly awesome, but good.  I was not full, though, and my dining companion who ordered two plates of the kobe and rock strip steak was definitely still hungry (each were only approx. 2oz  of meat).  I was glad to be able to order a big Asahi Super Dry, which was a somewhat reasonable $10.\n\nMy main beef with the place was the service.  It was terrible.  We had approximately four servers who were working with our table, but they appeared to be working independently of each other - one couldn't handle the bill, one couldn't tell us the status of an entree, etc..  They brought the food out in such a weird order.  We got our uni and seafood tempura simultaneously, then the carpaccio came pretty closely thereafter.  My husband and I were finished eating before our friends got the majority of their food.   Three of us were finished before the fourth got her entree.  We had to inquire about it, and it still took time to get it.  \n\nI heard some ladies complain to the staff that the bathroom was out of TP, which I think is also an indication of the level of service there.\n\nWould I go there again or recommend it to anyone?  No.