Your question is What Makes a Product Well Designed. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How do you know if the product is 'well designed'?
Explain the principles, research methods, and metrics you would use to evaluate product design quality. Address how you would distinguish a genuinely useful product from one that is merely visually polished, and describe how you would make a design decision when qualitative feedback and quantitative data disagree.