Although we didn't get to meet Nikos in person we felt welcome and right at home at his apartment. We were greeted by a friend of his who showed us around and offered her help during our stay (we had a few miscommunications because of language issues but we managed still).
Nikos helped us a lot with transportation and so on and was very fast in replying to our messages if we had any problems.
The apartment itself is very nice and a lot like the pictures. It's clean and you have everything you need (except a bread knife, so if you plan on cooking, you should bring your own sharp knives ;) ). We especially enjoyed our time on the small porch where we had breakfast and spent the evenings drinking the excellent Greek wines.
The apartment is near to mini markets, restaurants and beaches and we walked everywhere by foot and if you want to go to Mykonos town there is also a bus station very nearby.
All in all, we were very happy there and really enjoyed our stay. We hope you do too :)