One positive thing about frames is that they are easy to learn and can be taught in creative was for instance Jill Allison author of "Frames are a Picnic" describes frames using a picnic plate. She breaks frames down in an easy to understand manner with visual aids as well to help the reader picture frames as the picnic plate.
The only other positive thing I have to say about Framset is the simpler you keep it the more elegant it looks. If you don't believe me take a look at my Freshman year High School's Alumni Association PCHS. Overall I must say Framesets are better left to those with patience and an eye for difficult design.