First of all, the listing says "budget" so some of these things are to be expected and to be fair you will not find a better location for this price on AirBnB. The property is in the heart of the "flea market" area with loads of shops and restaurants and very near the Acropolis and other attractions. With that said, there are many things to be aware of before choosing to stay at this property:
1. If visiting during the summer, the sun warms the room all day and there is no AC. The only ventilation is by opening the balcony door (shared with a neighbor), which is a safety issue and lets the bugs in. Even so, our room did not cool down enough to sleep until 2:00-3:00am.
2. Street noise is NO JOKE. The host provided earplugs which did little to fight the noise from the street which easily lasts until 3:00am. Having the balcony door closed does help but then it gets too hot (see item 1).
3. Nice bathroom but the floor is always wet - shoes recommended.