A small appartement, but okay and much better than a hotel room. There was no seperation between the sleepingroom and the other room with the sofa bank. In our case this was not a problem.
We arrived at the train station and the appartement was pretty easy to reach thanks to a nearby metro station from witch it was a 15 minutes walk. (There are also busses).
Nearby there is a supermarket, and somewhat further there is a lovely pedestrian area with pubs and restaurants and a square were people sit and meet in the evening (and with banners protest against a planned metrostation that would destroy this social meeting place).
We did not meet Kostas in person and entered with a keylocker, but the communication was clear and friendly.