It is ancient town which many constructions are still kept original style through w/w war II, Chinese culture revolution, amazing place worth to visit. By the way, I don't like the beef there. And the story of 'power electric shutdown randomly' is true.
We visited there during the Chinese Lunar new year 2012, very cold.
More infor. http://www.pingyaolvyou.com/ , ticket 150 RMB.