Eleni's apartment is small but comfortable. We were a party of 3, and the space accommodated us quite well. The third person's mattress is a fold-up travel mattress, so it may have become uncomfortable after 3+ nights, but we only stayed for 1 night, and my friend reported that it was very nice!
The apartment is spacious! The room is well-sized, and there's a full-sized kitchen! Everything was very clean, and Eleni left very nice touches like mosquito repellent and after-bite ointment (it worked really well!!). She also was very generous about organizing check-in and making us feel comfortable. We were very happy with our stay.