Stayed one night at AI Hotel Thamrin, taking a Standard Queen room.
Overall, the room was quite comfortable and clean. The view overlooks Jalan MH Thamrin and Sudirman, so it was quite good, especially at night.
Breakfast was a set menu (not a buffet), so the choices were quite limited. A buffet might have been better, as you could choose from more than one menu. Due to the ordering system, the food took a while to arrive, especially since there were quite a lot of guests at breakfast this morning. The breakfast area is located in JCO Reserve.
On the plus side, there's JCO and Mako Bakery right downstairs, so if you're craving coffee or pastries, you can just go downstairs, which is very convenient.
Overall, the stay was quite good for its strategic location in the city center.