Can't say enough about the location! It is so close to the Acropolis, the metro station is a block away (three minute walk), and there are so many restaurants within a five minute walk. Neighborhood felt very safe (I'm a female in my 20s). Check-in with Ms. Vaso was great, she was very helpful.
The wifi was great for me to be able to work. The beds were okay, they're spring mattresses and on the twin beds you can feel some of the springs, but it's not bad. You also get some of the street noise into the rooms. The biggest thing is to make sure you turn on the water heater in time if you want a hot shower, otherwise it'll be ice! Overall, you can't beat the location and the pros definitely outweigh the cons.