The cave house was as portrayed in the pictures. The views from the front patio were breathtaking. As others have said, there are QUITE a few steps to this cave house, so be prepared for that. The nice thing is that it's so far down the cliff (actually the last one, in it's own little corner), that you will not get any of the random tourists wandering through taking pictures. The interior is quite spare, but comfortable. The fact that it's a cave means it stays nice and cool, even without air conditioning, which you will quickly realize is very important given how incredibly hot it gets there. Overall, it was a good experience, though quite pricey given the spareness of the interior. But that's Santorini for you!

Although we didn't meet John, he stayed in contact with us throughout our stay and helped us arrange a porter and driver to/from the port and airport.