I was at the opening of the first one in Melbourne. Got there at around 7:30am thinking that there would be around maybe 20-30 people waiting in line. When i arrived there it turned out that there was around 400-500 people. Somehow i managed to get a decent spot in the line and came out being the ~200th customer. It was around an hour and a half wait though. The unlucky people who got there later had a 3 hour wait.