Positive sides: Mr. Konstantinos answers very promptly with no delay. The location is good (around 25 minutes to the center, but you're going through a nice area). The apartment was quiet while I stayed, I didn't hear neighbors, only vehicles passing by.
It was warm inside. The bathroom was clean enough.
Negative stuff: blankets were dirty (and one was either dirty or just pretty old -hard to say). When I was making my bed, I noticed lots of black hair on them.
There's no shower curtain (nor podium) and water goes all over the place. Which makes it difficult to walk in there after. The water heater takes 20 minutes (which is ok), but it's enough for 1 person only. I was alone, so it's fine. But if you're a couple, you'd have to wait another 20 minutes to get hot water for the 2nd person.
There's no kettle, but it doesn't say there is in the description, so it's ok.
If you're not very attentive to cleanliness and don't take long showers - the apartment is worth staying in.