Helen's apartment is ideal for couple or single travelers in a nice neighborhood in Athens. A thing we really liked was the coffee bar down the street named Biolettas of a Greek/Italian couple who run the bar and were very friendly and helpful with us. Good coffee too. We recommend the Greek ice coffee! ;)
We did have our phone stolen in the Exarcheia neighborhood our first night out which made it difficult to communicate with Helen (our other phone is old and couldn't use the AirBnB app) from that point on. Other than that she was extremely helpful with tips about the city and was very friendly with us.