I went to the concert too and it started about 8.30pm and ended at 10.56pm, almost 2 and a half hours.
I bought the $168 ticket and was seated quite close to the stage. Probably the only downside to the concert was the sound system which was not of adequate quality.
Apart from that the songs, costume changes and pyrotechnics were good and appearance of FIR and Cai Jian Ya were a nice bonus.
By the way, if anyone knows where I can get Yan Zi's song Kai Shi Dong Le on the Net please please please tell me as I am really keen to get the song without having to buy the album.