I chose Cemal's ranch as (based on trip advisor) he seemed the safest and my husband is a beginner rider. We did the two hour sunset tour and it was gorgeous! We both rode Cappadocian horses. His horse was very slightly spirited and my horse was very good and with a nice pace. These were not the old tired horses which you need to constantly keep moving but they were still quiet enough for beginners. The views were spectacular! Unfortunately we didn't do any trotting or cantering because my husband is not a good rider. Cemal takes safety very seriously.
The horses were also in great condition which is important.
If I only had an extra day I would definitely do the half day ride!
I definitely recommend Cemal Ranch if you're riding in Goreme