The staff is unprofessional. I bought a ticket from Traveloka for Jatimpark 2 + drive-thru, so I went straight to the drive-thru with 7 small children. The line was already very long. I let the drive-thru staff see my Traveloka ticket, and they said it was okay.
When we got our E-car and were about to enter the drive-thru, another staff member stopped us at the gate and told us we had to claim our tickets at the counter downstairs, the Jatimpark 2 counter. They had already checked at the drive-thru counter and didn't tell us anything.
As a result, I still had to go downstairs, claim my ticket at the Jatimpark 2 counter, and queue up again.
I know it was school holidays and busy, but the staff were really unprofessional.
Besides that, the place is fun.