The only problem of this event was, that spectators didn't see anything, unless they were running around the whole arena. So the event was probably boring for most of the non-participating. (I managed to eat whole dinner during first 2 rounds.)
Since it was stated that this was just an experimental pvp event, I didn't expect much. But I was pleasantly surprised - it was fun (if you happened to be lucky enough to be one among the chosen).
I hope to see another event like this again.