There is not much i can say that other people haven't mentioned already. The place is located in one of the most lively and interesting areas of the city. On top of that, it's on walking distance from many attractions you will want to visit. Mrs Helen has even put her drawing skills into practice in order to help you not lose your way when you will be wandering around the area looking for places to eat, or when you won't be able to find certain sights because Athens is so vast that you might get lost. Seriously... that drawing helped me very much.
When it comes to the house, it was extremely clean and very well equipped. The bedsheets and the towels were clean, and the maitress was pretty comfortable. It had a water heater, coffee and tea bags, shampoo and body lotion, a hairdryer and a mosquito repeller. There was also an umbrella for the rainy days. The place also had a fan that i didn't feel the need to use. While it was really hot outside, there are two windows facing each other and thus, the airflow made me pay no mind to the heat.