How bad is May1st crowds in Xian?

As far as I know, there will be lots people in every popular scenic spot. Beside tourists, many local people also make full use of these days to enjoy their holidays. So you will face traffic jam, ticket shortage and long-time waiting. However, the comfortable weather condition will bring tourists a happy mood. Hilarious holiday atmosphere will also enlighten the beauty of this ancient city.
Thus, it's also worth to visit there at that time. :-)