Hector Cave House is even more fantastic in real life than it is in the photos, it's simply perfect. We just spent a week there and had a great time, waking up every morning to that view of the caldera was amazing. The location is absolutely ideal, just a few minutes from the main street with bars, restaurants and mini markets and a mere 30 seconds from the castle with the stunning sunset views. We spoke to Giannis when we arrived and he contacted us every couple of days to make sure everything was fine with our stay, he also left his number and said we could call him day or night with any issues. The perfect host, not intrusive but available when you need him. I would have absolutely no reservation in recommending Hector Cave House as the perfect place to stay in Oia.