We've visited the Ikarian Centre in its guesthouse incarnation, and it was completely wonderful. The location is really breath-taking, quite isolated, but not too far from the tiny and characterful town of Arethousa, atop a hill, with a really marvellous vista over Evdalos port and a beautiful valley. Mikelis, the person running the place (and teaching Greek, if you go for the Greek language course) has been exceptionally welcoming, pointed us in all the right directions for nice non-touristic beaches, tavernas, towns and anything we were interested in, quite literally like having an Ikarian friend draw you a custom map of the place, taking his time explaining everything and asking you what you'd be interested in. The room was wonderful, very cute in a rustic way, quiet and with plenty of windows looking over pretty places, clearly built with care, also confirmed by the fact it included quite literally anything you could want to have in a room, a fridge, a sink, a bathroom, a fan, a little cooker, pots and pans, cutlery, even down to mosquito repellant and a couple of little bedsit lamps. In the mornings you can have breakfast sitting outside, chat with the other guests/students, take in the vistas, and pick figs straight off the tree. Can't quite think of a better place to stay in Ikaria, or generally on a holiday, good location, good atmosphere in a place clearly made to be pleasant in a genuine way.

Nothing. The house is perfect as it is.