I was a fan of Kiyoshi-san and Minoru-san at Koo in the sunset, and I'm very happy to report that they are back serving up amazing, traditional edo-mae style sushi at Sushi An.
The new restaurant is fantastic, it is in the old Ino Sushi spot in the Japantown mall. They completed a small renovation of the space and it is intimate (8 bar seats and 12 table seats), with a very traditional Japanese decor - beautiful wood furnishings and simple, elegant touches.
Compared to Koo, the menu has been greatly simplified, with an emphasis on traditional edomae offerings. No crazy rolls, just 3 omakase options, a few maki options, and also the option to order a la carte. Now that they work in a smaller venue with a scaled-down menu, the chefs are able to work at a slower, more calculated pace, resulting in increased quality.
And the food, of course, is amazing. Great akasu (red vinegar) flavored rice and wonderful, expertly prepared neta. I chose the nigiri omakase option (1 otsumami, 12 pieces of nigiri, soup) for $75. The meal on this particular occasion featured madai, sanma, akami, o-toro, kohada, saba, katsuo, iwana, hotate, shima aji, and anago (not in that order, just typing the neta as I remember, also forgetting a few since I ended up ordering some additional pieces). Highlights were the akami (incredibly flavorful bluefin from Spain, better than the o-toro), the delicate madai, the perfectly vinegared kohada (see photo) and the very fatty shima aji.
Great balance between shari and neta, with the rice being at perfect body temperature throughout the meal, and very nice progression of flavors. Overall, I enjoyed my meal at Sushi An even more than recent visits to Wako, Kusakabe, and Gintei. Highly recommended. My new go-to sushi spot in San Francisco proper.