Good: Location is very good. The furnishing is fairly stylish. Kitchen is complete.
Bad: Monika missed check-in and I waited 30 minutes past the agreed time until she returned any messages/calls and she sent a colleague. The AC control was not provided in the unit, which is significant considering the heat and mosquitos (see below). Messages concerning the AC weren't responded to during a four night stay. Minor: there were only two rolls of toilet paper provided (and a note in their info book that there is a 3 euro charge for each additional roll...). Also the common lights in the stairs didn't work at night.
Unfixable: The studio is smaller than you think (one apartment on top floor was cut in half to make two rental studios plus an entry area. There will be guests going into the other side). There are mosquitos. If the windows are open, they will come in, and there will likely be a number of them inside already when you arrive. The splattered mosquito remains on the walls and ceiling tell the story.
This apartment is listed by a concierge agency, not the owner. They will send you communication that is not AirBnB specific and they don't seem to check AirBnB messages (they will want you to move the conversation off AirBnB). I needed to remind them city tax was included in the price (you get an email saying you need to pay it at check-in). They also send an email asking you to sign a rental contract, which I objected to because AirBnB is the contract, source of rules, and the mediator of any disputes.
Overall, especially given the price I paid, this is probably the most disappointing experience I've had on AirBnB. The unit is not horrible, but there is definitely room for improvement in how this is run.