Check on allearsnet.com. I've read several there on they were mostly unimpressed. I'll discount a bad review here or there but the majority seem to think that the found was no better than strip mall asian food and overpriced for what you get.
Does anyone else find the use of the word "yak" very inappropriate in a restaurant's name? Perhaps it's a "Midwest Thing" but when I grew up it was a popular expression used to describe the...er...um...violent "backwards" physical reaction one has to over indulging on food and drink.