I played it once, the end is a truck in the face, and a light breeze caressing the visage. It mixes sweet sadness, wet eyes and smiles, and even a few silent laugh. It's both a sad and sweet memory, gently breaking heart, and still sometimes slightly haunting me. A mark in my memory, but it's also because of that I don't have the courage to try play it again, knowing the end I suspect I'll cry all along the game. :=)
EDIT: In my opinion the game should have one unlock, when you beat the game it unlock a possibility to change the end, for sure for a much weaker end, but I would like be able to change it so much.