We spent ten days at Katerina's place and absolutely loved it! It was our first visit to Athens and the home made such a great place to return to after exploring during the day. It had everything we needed to cook nice meals, had a lovely living room to hang out in with a very comfortable couch and a TV connected to Netflix to stream movies, and the bedroom had one of the most comfortable beds imaginable. The entire apartment is beautiful, but especially the bedroom is decorated so nicely - with a perfect blend of grey walls, cozy white linens, and a minimalist aesthetic - that it was a good thing a great city was waiting outside the door, otherwise I might have spent all day in bed reading books! Lying in bed you can look out onto Mount Lycabettus, which was just such a magical way to wake up.
We were there in the winter time, so couldn't make much use of the patios (that are two, one on each level), but I can only imagine how amazing it would be to visit in warmer months when you could sit outside and enjoy your morning coffee overlooking the city.
Highly recommend!