The Cocoon Cave studio is cute, clean and nicely situated in Fira-Stefani, which is mainly residences and hotels with only a few restaurants and a mini-mart. It is a quick 10-15 minute walk to Fira, which is the main tourist area with a plethora of restaurants and shopping. We liked Elvira's location, as it is tucked away and quiet. You share a patio with 3 other units, so it is not completely private. It is a steep walk to every single accommodation in Fira-Stefani, so rolling suitcases are ill-advised. Backpacks are much more sensible and manageable.
Elvira has books and maps in the unit, which you can read on the patio, while taking in the amazing view. The books were helpful in deciding what to do while in Santorini. She left wine and water in the refrigerator for us, and provided daily housekeeping by Claudia, one of the sweetest people I've ever met.
The Cocoon cave is quite small, so it aptly named. It's best if you are traveling lightly. The space is cramped if you have lots of luggage. All in all, a wonderful selection for our stay.