Eirini's apartment is beautiful, spacious and clean. We were just two people, but it would be a comfortable place for a small family or two couples visiting Filoti. Close to everything you'd need (supermarket, pharmacy, local restaurants, other cute villages and amazing hikes!) Of all the surrounding villages, I'd recommend staying in Filoti if you want to experience the mountainous landscape of Naxos. The views from the balcony is something to behold! We would leave the windows open at night and loved waking up to mountain sounds and fresh air. Although we were not connected to our phones at all times, Eirini always replied quickly if we had any questions. Communication was great and we appreciated her punctuality.
For those with mobility issues, something worth noting is that there's quite a few steps to go up to the flat if you don't have a car. However, our legs were happy to pay for those views!