We visited Onar at the end of May, beginning of June. From the moment we arrived until we left, it was an amazing experience. The welcome From Mateo and Panagiotis was very warm. Our small cottage was exactly as described, simple but luxurious. The setup of the cottages is ideal, and gives a total sense of privacy.
Staff was very attentive and helpful without being intrusive. The chef made us a fantastic picknick lunch for our hike in the hills. The meals were generally simple, but very tasty.
The location is absolutely idyllic. Only a 10 minute walk to the beach, which was practically private, since nobody makes the somewhat challenging drive down to Ahla beach.
We cannot find anything that should be changed if you are looking for a secluded, peaceful and totally relaxing holiday.
Tip: visit Andros town, a typical Greek island village, without the swarms of tourists spoiling a nice lunch or a peaceful sightseeing stroll.