Stay at Nick´s home was great!
Everything was even better that I was thinking. He is super friendly and kindly guy who are totally available to help you, suggest you places, he went to the train station to pick me up, and all the time was able to talk and explain how get his house.
The appartament is incredible, huge, clean, own bathrooms, clean and all the things are able to use.
I really recommend if you are planning to go to Athens, stay in Nick´s home! It was a pleasure to me.