I attended on Saturday and Sunday. On Saturday, the arena was 3/4ths full during the day and fuller in the evening.
On Sunday, every seat was taken. The arena sat app. 2500 as it was configured for the event. (The Lotto arena can sit 5,000 to 8,000 for different events, but the billiards shut off some of the seating to have a stage and create a smaller venue).
Very enthusiastic and knowledgeable crowd. A pleasure to watch in such a place. Most fascinating was the sound of the crowd as it moaned a close miss.
The crowd strongly supported all the Belgium players, as was expected.
Most players made their shots in the 20 to 25 second range. Many, if not most, games were played without a player taking a time out (an extension). I did not see any player exceed the time limit.