Only time I've ever had Kimchi was at a Korean restaurant in China, so who knows how authentic it really was. Probably made using formaldehyde-laden industrial waste, who knows. It was a decent little appetizer that they brought out before your meal. A little weird; not sure I'd seek it out again but if I had the opportunity to try some real authentic stuff I would.
Gotta say, the worst thing I ever had in China is a toss up between stewed intestines (ordered accidentally twice before I learned what the character looked like so I could avoid it) and hot water on a hot day. The tap water there is not safe to drink so they always have boiled water available. Even when safe cold water is available people still drink hot water, even when it's hot out. I guess it's just what you get used to.