“This is no good.”

Why?

Because it doesn’t meet your specific and clearly stated requirements? Fine, if you’re paying for it or you’re responsible for it.

Because it isn’t to your taste? Fine, if it’s meant to be for you.

But if it isn’t for you, think carefully. You’ll learn something useful if the question you ask is not “Do I like this kind of thing?” but rather “Can I imagine someone liking or using this thing? Who? Why?”

Imagine harder.

See also:

This sort of thing

I'd love to hear your thoughts and recommended resources...