The idea is pretty cool, let the world know how you're feeling so nobody needs to guess. It can be pretty annoying to guess wrong at how someone's feeling. The aroma is an interesting extra feature, I guess there's no need to wear perfume, but if multiple people are wearing this dress and they have different moods and emitting different scents, then I guess things might result in everyone's dress turning to an 'angry' or 'confused' mood haha