I stayed for 5 months in the apartment and it was perfect for me. The apartment is just the right size even for longer stays. Also, everything you need is in the apartment. The apartment is also located in a quiet neighborhood and the center is easily accessible.
Kostas is a very friendly, very attentive host who is always available if something should be and also otherwise always asks if everything is okay.
All in all, I can only recommend the apartment.