Dieter Rams’ Ten Principles of good design:
Good design is innovative.
Good design makes a product useful.
Good design is aesthetic.
Good design makes a product understandable.
Good design is unobtrusive.
Good design is honest.
Good design is long-lasting.
Good design is thorough down to the last detail.
Good design is environmentally friendly.
Good design is as little design as possible.

Although I’m far from a designer I can relate to Rams theory, Less and more. I often say less is more in relation to djing and music.