The air conditioning worked well. Location was good... a handful of blocks away from the underground that took you straight into the center. Balcony was super nice. Fine for a short stay!
Negatives:
The bed was really hard/firm, the pillows were not substantial and there was no blanket in case the air conditioner got the room a bit too cold. This is probably to discourage over use of the Aircon.
The space is very small. I don't think the pictures fully show that the bed is about 1 foot from the kitchenette which is 1 foot from the little table. Once you put bags down you trip over them or you walk only on the bed because there is nowhere to walk. There also is no common space at all. it is like a hotel room with no living space to relax on a couch anywhere in the apartment.
Finally, the "key" for the room is a phone that is able to have service and make international phone calls. If your phone runs out of battery or if you cannot make calls you cannot open the door. I was worried all day about running out of battery because then you can't get in to your apartment!