It's pricey, but it is worth it. This is easily the best place to eat in South Park. It gets a little too hipster at times, but the sushi is outlandishly creative and delectable and the burgers are manly, monstrous, and cooked like nobody's business and the beer selection is a cornucopia of mind-shattering awesomeness.
Want to try a bison sushi roll created by Ric Flair? Cowfish has got you covered. If you're not interested in that, you may want to check your pulse.
Again, be prepared to pay and be surrounded by snooty, hip, white people. The "experience" doesn't do it for me, but the downright artistry of the delicious food more than compensates for the other customers.