I am assuming the S6 Edge and regular S6 have the same camera. Regardless, the camera on the S6 is pretty phenomenal. I have been able to grab some really awesome shots with it. It is one of the main reasons I want to stick with the phone, despite really wanting a phone with a larger screen.
Here's a few shots of my parents' dogs I shot that I think really show off how well the camera performs. Albeit, there is some editing done to them through Instagram, they still showcase the quality you can achieve with this shooter.