The room is okay, something that you can expect from an hostel: clean-ish, essential, quite noisy, shitty breakfast.
There are no windows. The bathroom facilities seem quite old, it took a while to get warm water in the shower.
The owner (he and/or the guy at the desk) does not speak English, you basically speak to Google translate.
The Airbnb description says that the hairdryer is available but it's not specified that you have to request it and if you self check-in (like us) then you are not able to ask for it untill the next morning. Very inconvenient in a rainy night.. and we got there roughly 10 mins later the desk opening hours: they didn't wait for us even if we were WhatsApp-ing with them while arriving from the airport, but they were always ready to ask to us extra fees for everything!
Location is good but be advised that the property is at the border of the Roma neighborhood, a couple of blocks away from the actual super nice neighborhood.