It was a great hotel overall. In particular, all the staff at the front desk, the restaurant, and housekeeping were very helpful and friendly. Breakfast had a variety of options, all fresh and tasty. The room was spacious and clean.
If I mention the downside, the rooftop bar was a bit noisy with some DJ event (which I enjoyed, to be honest), the treadmill at the gym wasn't working, and there were no restaurants I could find nearby (but you can go easily by taxi).
Overall, it was a great hotel, and I would like to stay again when I visit Jakarta.