Our stay *should have* have been excellent. The location is good, the building is nice and clean, as are the rooms. The room has everything you'd want: a comfortable bed, small kitchen, excellent shower, light-blocking curtains, snacks and drinks, lots of power outlets, etc. The communication was also excellent and you could send a WhatsApp message and get an immediate, helpful, and friendly response.
It appears that Numa runs this building like a quasi hotel/Airbnb - they were able to change our room assignment on the fly to let us check in an hour early.
Unfortunately, I think the most important part of the place you stay at night is the ability to rest and wake up refreshed in the morning. We were unable to do that due to an air conditioning system that was useless. Granted, we're from Miami so we're used to sleeping in cold air-conditioned rooms, and perhaps you are from somewhere where a 25C (77F) room is fine for sleeping...so I'll just share the facts of what we experienced and you can decide if it works for you:
The control for the AC unit lets you set it as low as you want temperature-wise and you can also control the fan speed...but it's rather pointless. Even at 10C and max fan, it does not cool the room at all. The AC vent is on the ground and you can feel some coolness there...but there is no air blowing into the room. Light curtains sit above the vent and they do not move at all. During our 4 night stay, the temperature in the room never went below 25C (77F) - according to a carbon monoxide alarm at the entry door.
You can try to open the window and let the cool air in...but that doesn't seem to work either. It was roughly 10C (50F) at night, but even with the door open all night, the room did not cool below 25C. This also brings the problem of noise from outside. It's not a busy street but it's not quiet either - and there's a tram that runs regularly. There are also several restaurants and I believe a bar as well. Earplugs were provided, so we used them and left the window open, but I can't say that it helped much.
I spoke to Numa staff a few times and they were very friendly and tried to help. They brought us two fans that tried...but failed...to keep us cool at night. They told us that they can only control certain aspects of the air conditioning themselves, and that the unit was working the best it could. They told us that other units were also complaining about the temperature, so it seems like more than just the room we were in.
Personally, I don't think it's fair to advertise that the unit has AC if it doesn't actually cool the room. A car that starts but doesn't go forward or backwards is not a working car just because the engine starts.