I like it. It's fun and it's catchy. Like a sequel to The Golden History. They seem to be alternating between fun (The Golden History) -> cool (Blast!) -> fun (Xiao yi-Xiao). I think it'll be really fun live.
So far, after a day of listening, I think my favourite might be Chintonshan. I'm happy to hear that songs that are all over the place are back on the menu.