Together with a group of 4 friends we stayed at Ioanna's place and it was a great experience. The apartment is very modern, spacious and comfortable, with enough room to host up to 8 people. The beds were very comfy and although we did not cook any meals there, the kitchen was very well equipped with all kitchenware you may need. The are is quite noisy but the apartment is well isolated and if keeping the windows closed you don't hear anything at night.
Location is great, in the very centre of Agios Nikolaos.