The island of Amorgos offers many beautiful beaches and breathtaking views.
I stayed at George's place with 3 friends of mine for 1 week, and we never felt like there was nothing more to do. The place in Kamari is perfect for a relaxing and enjoyable trip to a rather small greek island. The only "downside" is that you need to rent a car to get to the place, however, it's very cheap when the price is split between 4 (we are all students) and having a car is always useful for doing some shopping and going to the beaches.
George is a great host, he came to greet us at the ferry and even helped us with the first shopping. Afterwards he was always there for us in case we needed any help, you can ask him anything and he will respond almost immediately.
The place itself was very clean and exactly as in the pictures promoting it, comfortable and definitely bug enough for 4, maybe 5.
Enjoy your trip to Amorgos!