Foreigner, noticed your Accor Platinum, recommend reconsider and book into Pullman Thamrin (used to be Hotel Nikko).
Just spent 4 nights there on the 50% off deal for around AUD 85.00 per night.
Bonus for Plats are;
An all day refreshment of coffee, tea, juice and soft drink at Le Chocolat
Drinks (includes coughtails) and Tapas privilege at Kemixtri Gastro Bar 6-10PM
Buffet Breakfast at Sara Sini Restaurant.
Negative is there's a lot of work going on at Jalan Thamrin constructing the Jakarta MRT, due to be finished in 2018.
Jaya Pub is good for a beer and live music, food is not that crash hot.