Nik's place is great. Its pretty central, so close to everything. 3min drive the the airport, 1min walk to a grocery store thats open 24/7 and to the bus stop, which will bring you to all the beaches and to the town and 10 min walk to the town Chora.
My friend and I (both girls in early 20s) had no problem at all. Everyone was super nice.
His place is like a motel, with your own room, bathroom, mini fridge, tv and air conditioning. He has an outdoor pool which is great, and some sunbeds with umbrellas to lie down. There is wifi but it does not work in the room.
Nik is very nice and even came to pick us up at the airport at 9am. Our room was not ready when we arrived, but he kept out luggage and let us go swim in his pool while we waited an hour or so. He told us about the bus and the grocery store nextdoor. He also drove us to the pharmacy. He also offeres to book us a taxi since our flight was at 6:30am. Very accommodating and nice.
The only thing that could be improved is the wifi situation. You connected sittinf right outside your room, but not in it. We would love to go again! Its a very beautiful place and island! Definitely reccomend staying at Nik's