I was fooled twice in one year! Had a Note 4 and an S6 edge. Both were a master class in hardware and even features, but both suffered from ceiling software issues, that yes, made me want to throw the phone against a wall at least once a week. So here I sit with a G4 because, although the camera, screen, and form factor isn't as good as those other two Samsung phones, the G4 is a joy to use. Fast, smooth, responsive, and I haven't once been frustrated at it or felt like I was fighting my phone to perform a task. This experience, with the hardware of an s6, would be the gold standard in smartphones.
You seriously have no idea what you are talking about. I know the reviews said this, but those guys are reviewing the out of box experience. A month later, it's the same old touchwiz. Just trust me, in the past year and a half I have had an s5, note 4, TWO s6 edge phones. Touchwiz is still just as garbage as ever, they just improved the out of the box by removing a bit of bloat up front, but once you install a lot of apps and push the phone, it will make you want to toss it against a wall at least once a week.