The Galaxy S6 Edge+ is the closest thing we've got to a "Samsung greatest hits" phone. There's the sleek, curved glass from the S6 Edge coupled with the larger 5.7-inch screen from the Note lineup. Together, they make up one of Samsung's most memorable smartphones yet. But while the Galaxy S6 Edge+ ($300 on-contract; $768 to $815 off) is certainly striking, the Korean electronics giant clearly still has some kinks to work out around curved screens. It's a feature that's slightly more useful here than on the S6 Edge, but fundamentally it's still just about aesthetics, rather than function. That might not be a problem for some, but Samsung still has to prove why curved screens are more than a gimmick.