Marianna is a wonderful host of a wonderful apartment in Kolonaki.
I stayed almost for two months at her place and I really loved it. The area is just perfect. You are in the middle of Athens and its so quiet.
You are only a few steps away from Lycabettus Hill and the Evaggelismo Metro Station. There are many nice little shops around Mariannas home and in just 20-30 minutes you can reach Monastiraki (door to station) with the underground.
Mariannas apartment is completely renovated and has everything you would need for your stay in Athens.
The bed is very comfortable, the pillows and blankets were very clean and good quality. So you can sleep very well after a day out.
The building itself is in a good state and the neighbours are very nice.
As you probably can conclude by yourself I really loved to stay at Mariannas place and of course I can recommend it.