Nikos and Stella are OUTSTANDING hosts! They provided me with lots of info before I arrived, arranged someone to be there for check in and were very responsive when needed, providing all sorts of information and advice.
The apartment is very well located in the heart of the Plaka, and only a couple of blocks from Syntakma Square. The terrace is quite large and has a lovely view. The apartment itself is quite cozy with nice touches.
There was a problem with the electricity on my second night, and Nikos took time off work to help me out. When it couldn't be fixed straight away, he took me to their other apartment to stay at no extra cost. That apartment has an amazing view of the Acropolis (especially at night when it's floodlit) from a very large terrace. It's very large and could easily accommodate a family.
I have nothing but praise for Nikos and Stella who went out of their way to ensure I had an outstanding stay in Athens. I highly recommend them as hosts in either of their apartments.