We had a great stay on Samish Island! Very beautiful spot! As other reviews mention, there is a honeybucket just steps away, near the beach access. We brought a lugable loo just in case, but didn’t need to use it.
Pros: view, view (yes twice), deck, covering for rain, location.
Only con would be the setting. There is an old trailer home/modular home right behind you, plus two occupied homes. So privacy is limited, but not really any different from a major campsite. The actual setting of the site and location are beautiful enough to over come this. We would stay again, and hope to in the future.