I like them... i'm not a fan though, and I don't understand why so many english speakers call them Antique Cafe
My fav songs are "Merry Making", "Smile Ichiban ii Onna", "Wagamama Koshinkyoku" and "Escapizm" (which was the first song i heard from them)
An Cafe is one of the most famous Japanese bands here in my country (obviously in the underground/visual scene)... I always see posters from them at streets and stuff, and i went to an An Cafe event in december, they were selling CDs, posters and stuff like that
Their real names have been leaked in the internet, but they're not confirmed oficially yet, except Teruki's
みく >> 築山明治 (Tsukiyama Akiharu)
坊 >> 斉藤和弘 (Saitou Kazuhiro)
カノン >> 佐野真哉 (Sano Shinya)
輝喜 >> 永田輝喜 (Nagata Teruki)