It's so delicate, yet dizzyingly romantic... The best experience of this I ever had was when I saw a ballet set to this music... so simple yet incredibly beautiful. Two young lovers at first shyly walking, then dancing passionately in the park... and at the end, he lifts her over his head and steps into the wings to the rhythm of that final hypnotic cadence.
I love playing Moonlight Sonata and Ase's Death on the piano... they really get the piano growling. I also like The Swan by Saint-Saens, though it sounds better played on the cello.