We spent 4 days at Ilia's house and our experience was amazing!! We stayed 4 couples, with 2 little kids and it was still really confortable.
It's a well renovated traditional house of Kythnos with a beautiful terrace, fully equipped for a wonderful vacation!
It's a quit place, however is very close to the Chora of Kythnos (1 min walking through beautiful narrow alleys), where there are many shops, bakeries, restaurants and bars!!