We've stayed only one night, but we really enjoyed the time at Livanios.
The studios are conveniently located on the main street of Adamas, less than 5 minutes walk from the port. The rooms and the appliances look new and modern (unlike many other places in Greece). There was quite enough space for 3 people, the water in the shower was hot and strong (again, unlike many other places in Greece), and the wi-fi signal was quite good.

We would definitely recommend this place for a family or a group of 2-3 people.