Common marketing wisdom is that you need to focus on "solutions" -- what problems does your product solve?

As an engineer, though, this isn't what I want to know. I want to know what your product does, and then I will decide how to use that to solve my problems, which may or may not be the ones you anticipated.

Moreover, if you only tell me what problems you solve, I can't tell how well you solve them. I need to see what the product does to evaluate that.