Here's what I thought:
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Location is strategic, near city center but neighbourhood area is chill enough for you to get the relax ambience to rest.
A lot of food options, even in the front of the hotel you'll find burger franchise vendor, need a coffee? Family Mart and Indomart Point is just walk away, padang restaurant, warteg, warmindo or simply street food vendor are literally in the surrounding area.
Wifi is fast and stable, I have no sudden disconnected problem at all
Staff are friendly and helpfull
The scenery from your window is actually great, particularly on the south side, you'll get the full scenery of Jakarta skyline.
It also means you'll get a lot of natural light from the sun, and that's a good thing
The room is clean and no strange odor
Room for improvement:
You can provide a small trash bin inside the toilet for the guest after finish their business, I had a hard time looking for a place to throw away tissue
You also can provide a tray for the water pitcher and mug, small detail but will be a nice touch to provide
Overall, it was a nice stay at Daffam Express hotel. Thank you for the best service and hospitality.