Harmony is in a great location, close to the Grand Bazaar, Spice Bazaar and most of the 'must see' attractions, The rooftop has a great atmosphere and the staff are great. The shower however is a little confusing and temperamental. Other than that it was pretty good.
Yasin's place was a great place to stay in Goreme, it was very central, staff are friendly and helpful and breakfast was good.. It's maintained the feel of a traditional cave house without sacrificing comfort, very quaint. Be prepared for the damp smell, it's just what you get for the novelty of staying in a legitimate cave house.
'Anna' was perfect for what we needed, always clean and secure, staff are friendly and un-intrusive. Also it's across the road from one of the most special bar's in the world.