The play area is varied, suitable for babies and older children. The foam cube area in the corner seems a bit unclean, with many of the cubes no longer suitable for play, but the rest of the area is safe.
You get a discount for a 3-hour session, which is perfect for sitting while waiting for the breaking of the fast.
Note: Be sure to bring non-slip socks, as the floor is slippery. They're also available at the cashier for 20,000 Rupiah per piece.