Kenichi has been Austin’s downtown sushi spot for quite some time (8+ years?), but with the recent additions of Imperia (a personal fave), Yu Sushi Igazyu, and coming-soon Piranha sushi and the stiff competition from heavily-discounted-happy-hour-hitters Kyoto, Silhouette, and Maiko (also a fave), the venerable spot is ramping up its image and offerings. There’s a…