Adoration with a qualifier

A song I heard on KPTZ yesterday deserves its own post.  When someone sings to or about his beloved, he often sings cliches about climbing the highest mountain or swimming the deepest ocean for her.  He doesn't usually put a qualifier on his adoration.  He doesn't pull off what Fats Waller did in "You're Slightly Less Than Wonderful."  The title alone puts a realistic qualifier on things; essentially, it's the equivalent of a Valentine's Day card that reads, "I love you, too...for the most part."  And yet, in Waller's song, with its long piano intro and sincere vocals, the qualified sentiments work.  Quite an impressive songwriting feat...