Zara Caves is a lovely hotel. I was a little worried before we arrived that our room would be dark and feel a little claustrophobic as it had no windows, but there was no concerns when we arrived - the room was very well lit and spacious and it was nice to do something a little different to what we're used to. As a family of 4 with two older children - the room was a great size (we were in King room 103 - the largest room at the hotel).
The hotel is in a great location, right in the center of Goreme, so all the good restaurants and shops are within walking distance and all of the tours are nearby, so the drive is never too long. The highlight for us was the terraced areas where you can watch the balloons in flight at sunrise. We had the chance to go up in a balloon but wanted to see them from the ground too, and the Zara Cave terrace was the perfect place to do this from.
The hotel staff are very friendly and helpful, messaging us well in advance to offer suggestions for tours etc and to help with transfers to the airport. We couldn't fault anything and would definitely recommend this hotel for your stay in Cappadoccia.