We were in Greece for 2 weeks and stayed in 5+hotels. This is the only hotel with USB charging. So bring a plug adapter for sure.
We booked the city quadruple room (room #1). The room size is average by European standards. However, the room is quite spacious thanks to the bunk bed design. each bunk bed has curtains for light control and privacy. 👍 The washing station is outside of the bathroom so that people can get ready when someone else is in the shower. The 2 benches in the room were made from particle boards (?) that seemed to be more for storage than sitting (it sagged when two adults sat on it).
The location of the hotel is great! It's 2 short blocks away from the Monastraki Square and metro station, close to the Ancient Agora, but unlike other bigger hotels on the Square or along the Ermou street, it's tucked away into a quiet side street in the Psyrri district. So you would be brushing shoulders with tourists flock to the Little Kookland restaurant next door. Instead of getting breakfast for 5 Euro pp at the hotel, the 3 of us ate at the bakery around the corner for 5 euros including espressos. The restaurants on the same side of Ermou street (close to the hotel) are good for dinner, but if you cross Ermou (close to the Ancient Agora) the restaurants tend to be touristy. Self service laundromat and luggage storage places are just one or two streets over.
Last but not the least: the front desk people are awesome! The hotel uses an app for opening and closing doors.