My wife and i enjoyed one month here. Beautiful, spacious, clean place with everything you need (and even more). Stable wi-fi. Many cafes, restaurants and supermarkets around, only 15 min walking to National garden and 25 min to the historical center.
Konstantina is very friendly and helpful.
Just take a note that apartment is on the ground floor, so it's a bit dark inside and with open windows you will hear noise from outside. Also neighbours could be really loud. Very strange to hear them talking loud when you're in the bathroom :)
But in general this place is nice and comfortable with good location. Recomended.