I stayed on the 25th floor. Upon check-in, I received free juice, cereal, and cream soup. The service was available from 2-9 PM.
To get around, just take the pedestrian bridge. Take the Transjakarta bus and get off at Pancoran. Then take the LRT to Dukuh. Get off the TJ bus towards Kota. Get off at the Hotel Indonesia roundabout. There are lots of souvenirs there.
The toll road exit and entrance are close. Unfortunately, I didn't check the directions first; I just used Google Maps. I ended up getting lost and turning around, similar to the Rambutan turnoff, and it was jammed. I should have just gone straight into the middle lane after leaving the hotel. As a result, I left at 7:30 PM and arrived in Cilegon at 1:30 AM.