I went to the first one in MTL. It was a great experience and one I will not forget. It was so loud...From the first preliminary fight at 7:00 or 7:30...can't remember when it started all the way to the end. Nothing but noise! For the GSP fight the fans cheered so loud that you couldn't hear the song that GSP came out to and they booed Serra so loud you couldn't hear what he came out to.