Buying tickets through the app has its own ticket counter, but you're still asked to queue at the on-site counter, which fortunately wasn't too crowded at the time. The rides might need a little maintenance, like painting some of the ones that are a bit worn out. Overall, it seems okay, but I also came during high season, so I risked not being able to play much due to the long queue. Oh yeah... there's also a photo booth across from the Ferris wheel. Pay by scanning the QR code, the results are printed directly, and the files can be downloaded immediately. It's only 40,000 Rupiah, but the photos are great with the Ferris wheel in the background.