Nothing negative to say really. The check in was very easy (with 2 pairs of key included, which is nice), the apartment was extremely clean, the balcony is big enough to comfortably fit 5 people and the kitchen is well furnished. The apartment is also at a 3 minutes walk from the metro and a 5 minutes walk to the bus that takes you directly to the beach. For the price, it’s very hard to beat, and I most definitely recommend you book this place if you’re visiting Athens!