I've worn Happy and Happy Heart for about 15 years. They both are subtle but intense. At it's strongest it smells shower fresh, everyone knows me my smell good when I enter a room. Not that you can smell it so much from a distance but you smell fresh out of the shower. I'm very picky about fragrance and I hope they never stop making it.
I've worn happy by Clinique a few years ago but was really looking to try happy to be,and sadly they stopped making it. I was skeptical about happy heart until I tried it,now I'm a fan. It's so clean & fresh,kind of like Haiku by Avon but with more lasting power. Very nice feminine fragrance.