As others have mentioned:
- Jakarta street food tour ... very good chance this will ruin the rest of your trip. I'm not picky when it comes to food, and reasonably adventurous, but Indonesia showed me my culinary limits.
- Jakarta traffic is next-level bad. It's one of the reasons they're moving the capital to a new city on a different island.
- It's just not worth leaving the airport.
I don't think anyone mentioned you can get massages and spa services either in the Anara hotel or at a spa in Terminal 3. I used the standalone spa and liked it.
You can also buy batik in the Anara lobby. If you have downtime in Sorong, I think you can find it there too.
The Anara buffet is a decent introduction to Indonesian food and you won't get sick.