I have to agree with you. It's one of those songs that gets better the more you listen to it. At first, it sounds a bit corny ("I love you -- ooh, woo, woo, woo..."), but then you listen to the melody and you realize how lovely it is!
And you've GOT to love John's adorably flu-ridden vocals... I just smile every time I hear him sing "my happiness still makes me cry" and his voice cracks... he sounds so cute and sick from a cold.