Themis's place near top of Chora on Serifos has breathtaking views and is well located near cafes at top of the Kora. It is not large but has everything you need - there was a small issue with plumbing but it was fixed first thing the next morning. If you go to Serifos when not in middle of summer I recommend the hike to the monastery at the other end of the island- brilliant views and changing vistas. Recommend staying at Themis place.