Buying tickets on Traveloka is really easy, redeeming tickets is practical, the price is also much cheaper because there are many promos. Yesterday I bought a weekend pass ticket for 107.5k, then added an additional companion ticket at the cashier for 20k (cash only), so the total was 127.5k for 1 child and 2 companions. For comparison, buying on the spot for 125k does not include additional companions. Hopefully in the future I can buy additional companion tickets on the application too.
The playground facilities are quite good, there are indeed some games that are broken but are still displayed around the play area but for this price being able to play as much as you like is really worth it. The place is spacious, there are many games that sharpen and stimulate children.