We spent two days in the apartment and enjoyed it a lot. The location is realtively close to the "hot spots" you canot miss in Athen and directly connected with the Irport (ca45min with the Metro). Being most of the clubs and bars around closed for covid, the area is quiet and perfect for a goos sleep, especially in the massive bed upstairs.
The place has also a washing machine, very handy if you are several days in the road around Greece ;)
Kitchen has everything needed to cook daily meals however as already mentioned by previous guests, a couple of bowls and additional plates and smaller pans and pots wouldnt hurt...
A bis miss was the terrace upstairs for us. We literally spent one minute only there as it was ugly and hot, almost no plants or decoration to make it nice, nor an umbrella to protect you from the sun. We never ate there which is a shame and downstairs at the entrance wasnt great either for a dinner outside. We had to eat in the hot kitchen every evening :(
Personal tip: what out when you lie in the couch, one wall has real stones in it that are sometimes spikey and hurt, as happened to me 3 times.
That said, you can enjoy Netflix on the couch to relax your tired legs from walking around town :)