Okay, I searched the board and found that I am not the first person to post about Murasaki (Clement bet 3&4) here. But the other posts treated it like some kind of second-class sushi citizen, someplace to go if you can't be bothered to wait at Kabuto.
I beg to differ. Props to Kabuto, but Murasaki is also the real deal and the sushi chef there is a serious dude. It's just that you have to work to get him to work for you. You have to earn his love. He does not give his love to any fool who walks in off the street. On my second visit there, I saw him give a regular customer freshly grated wasabi (=love) while I suffered with the instant paste. Finally, on my fourth visit, I got the good stuff.
One technique I find useful is to ask the sushi chef about his knife. Ask where he bought it. If it's in America (unlikely, but possible with new distributors), be surprised that they might sell such beautiful items here. If it's Japan, be impressed that Japan has such beautiful items there. Ask how many times a day he sharpens it, and with what. Be very, very impressed.
Definitely get the katsuo. He makes his own topping for it that includes ponzu and garlic. Maybe too much garlic, but you don't have the right to question that. Do NOT dip the katsuo in soy sauce, since it's already flavored the way he wants you to have it.
There is a large framed drawing of a chinese character above the sushi bar, the one pronounced "arashi" in Japanese, meaning storm. The reason it's there is that the sushi chef is friends with Kitaro, the famous Japanese synthesizer musician of the 70s. He told me Kitaro's last name is Arashi, that Kitaro lives in Colorado now, and that Kitaro gave the character drawing to him as a present. Do not ask about this, as the sushi chef might get the idea you're trying to impress him with info you got from Chowhound.
Let me know if you get the fresh wasabi. It doesn't count if you ask for it, because he will probably feel guilty and give it to you. You do not want love based on guilt.