I've read about celebrities going to Nobu.  My friend talked about Nobu like it was a god of sorts.  When we found out we had a table waiting for us at Nobu, I was ready to go and feast myself on its delights.  We ordered: The miso black cod, salmon nigiri, a soft shell crab roll, the hamachi and jalapeno appetizer, the mushroom salad, a vegetarian cut roll, and the tiradito.  To drink I had the cucumber martini.  It was seriously one of the best drinks I have ever had.  It tasted like it was made with lychee vodka, and was smooth, refreshing and not too sweet.  Unfortunately our positive experience ended there.  After waiting an hour for our table, we had ordered about 15 cucumber martinis and was dying for some water.  We sat at our table and for 9 people, 2 drink menus were placed on the table and then we were ignored.  I glanced at the menus, waited.  Our waiter came by and I asked him for waters all around and food menus.  15 minutes go by.  We had no water, and no menus.  Finally, we're given 5 menus for 9 people, as he handed me the last menu, he left saying \""We're a little short on menus.\""  We shared our menus and within 3 minutes he was back asking us what we were going to have.  We asked him for some suggestions, and he pretty much just brushed us off.  We finally ordered the hamachi and jalapenos.  Before I could order anything else, he rushes off.  The next time we saw him he is dropping of a plate of hamachi and jalapenos.  Pretty much the whole night, he just ran off with us halfway through ordering and as a result, we were unable to dine together.  I can only speak for the mushroom salad and vegetable cut roll.  The vegetable cut roll was pretty good, I mean, steamed vegetables, wrapped in a cucumber wrap, with a little ponzu sauce.  The mushroom salad was pretty gross.  The mushrooms were varied; trumpets, oysters, shiitake, enoki.  The sauce it was cooked in was sour and as a result made the mushrooms taste bad.  Everyone else thought the hamachi and jalapenos were pretty good, and they loved the miso black cod.  Everything else, however, they said was mediocre.  Mediocreness is ok, if it wasn't coupled with poor service and a $400+ bill.  When the bill came, we inquired about the drinks on the bill as we thought we had taken care of them all at the bar.  His response?  \""No you didn't, but you can just take it out of my tip.\""  I secretly think that everybody raves about this place so much because they don't want to admit they spent that much money on a mediocre experience that you can get anywhere in San Francisco for a quarter of the price.  Overall verdict:  Skip it.  The atmosphere is not really that great, the food isn't really that great, and the service should not be called service.  The Pros: The cucumber martini was super good.