Pension Sofi was the perfect place to stay for our four days in Naxos. It is a 5 minute walk from the center of Naxos Town, which is the cute historic area with all the shops and restaurants and windy narrow pathways. Rena and her family were amazingly accommodating. We originally were only supposed to stay with them two nights, but changed our plans last minute and they let us stay in our same room two more nights. The room was very comfortable and affordable. We had a balcony and a kitchenette which we used to make hot chocolate and breakfast in the mornings. Every morning Rena would make coffee and had cake or croissants for the guests. She also brought us grapes from her fathers garden one day. She also helped us coordinate a rental car, which was brought directly to the hotel, and we didn't even have to return it at the end of the day. We just brought it back to the hotel and they took care of getting it picked up or brought back. On the day we were leaving, we had some time between when we checked out and when our ferry was supposed to leave, and we were able to leave our bags at the hotel, and Rena and her brother or husband or coworker (I'm not sure how they were related) met us with them at the port shortly before our departure time. She also gave us a little Naxos magnet as we were saying goodbye. All in all, a wonderful stay with them.
Pro tip: We visited Naxos in late October which is DEFINITELY nearing off season for the island. Many shops and restaurants were already closed for the season. We arrived on a Monday and left on a Saturday. The town was basically empty early in the week, but got much more lively by Friday and Saturday. Just something to be aware of.