We stayed for 5 nights in Dimitris' place - a clean and tastefully decorated studio at the centre of Chora in Serifos. We really liked the small touches to give this studio a local island feel. It is right next to the main square which is very convenient after a night out in Chora - it can be a bit noisy at night for that reason but Dimitris was upfront about that and it was not a problem for us (light sleepers could bring earplugs).
Dimitris was an excellent host; very responsive, always happy to provide local tips and very accommodating as he kindly agreed to an earlier check-in / later check-out given no conflict with prior / future bookings.