I loved my stay here and would stay here again if I return to Athens. The room was super clean, and the linens were comfortable. The options for breakfast were healthy and balanced - not unlike many free hotel breakfasts I've tried. There is free coffee throughout the day and a nice reception area.
Hotel is conveniently located a 5 min walk from Monasteraki station, and there are many options for food, shopping and coffee shops around. The staff was super friendly and helpful.
Just to note, the sink is outside the bathroom and in the room. There was limited space to put down toiletries. Inside the bathroom, the water from the shower would come out and leave the floor wet. The AC didn't go below 19C, if you're someone who likes to sleep cold. There was a bit of noise that came in from the street into my room, but they provided earplugs, and also I would say the noise dimmed down after like 11 pm (I was there in November, so maybe this is a bigger problem in the summer).