Nikolas' place was amazing. Even better than shown in the pictures. It is in a very central location just a few minutes walk from all the hot spots that Thes/niki has to offer. The apartment was very well furnished, and Nikolas has provided solutions for any kind of contingency (ironing board, even mobile phone chargers for all kinds of different types of mobile phones).
Even though Nikolas was not there when we arrived, his colleagues greeted us and showed us around despite the fact that we arrived very late (23:00). They were very friendly and keen to offer suggestions of what to do and see.
We had a great time, and if we are back in Salonica we are definitely staying at Nikolas' apartment if it is available. We highly recommend it.