Depending on the Sat/Sun you go, it can be very busy or not so much .. it all depends on when you arrive, and such. We went the first weekend, the first Saturday, and it was not so busy at all as we went through the AP entrance (early entry, I think) and we were done with almost all the houses before it was even dark, which gave us time to revisit again .. by the time it was getting later, say 8-9pm, though .. most houses were 100+ minute waits. Definitely arrive early.