We love the Yak & Yeti. Ended up eating there twice during our last vacation. The food was very good. It's a mix of Chinese, Japanese and Thai. Although I'd say it's mostly Chinese, and if you like eating Chinese food, you'll like Yak & Yeti. They have some very basic dishes for picky-eaters like Egg Rolls, Fried Rice and Sweet & Sour Pork. But there's also some unique dishes with seafood, poultry and beef.
The location is great. It's right in the middle of everything, next to the Flights of Wonder show, Kali River Rapids and Maharajah Jungle Trek. It's also a very short walk to the Kilimanjaro Safaris or Expedition Everest in the other direction.
The theming is very good too. We've been all over the Far East (stationed in Hong Kong for a few years), and we've actually eaten in places just like that in mainland China (I'm referring to the atmosphere, not the food). It's not a jawdropping sight, but it's pretty authentic.
I recommend it, unless you really don't like Asian food. Then you're probably better off somewhere else.