We dined in once and got delivery to the Jayakarta Hotel twice! The meal sizes weren't huge, except for the pizza which was massive!
Twice we used their delivery service, ringing in our order. This was perfect as we have young kids and they were too exhausted to go out, and the hotel room service menu was very poor.
When you wander past it, grab a menu and use this option for cheap delivery of pizza (or anything!) to your hotel!!