You should do it. Let's just leave it at that.
Well, come to think of it, that's not very helpful now is it? I think you should expect more along the lines of what unikos described and less of the "seeing sounds" and all that stuff you commonly hear.
"Increased appreciation." Being totally enchanted by the music and sounds. All of a sudden really enjoying tracks that never struck you before, and feeling that way later too. Sitting there (or dancing) listening and thinking how clearly you can hear the sounds. How clear they are, like they are three dimensional, and you are in the sound. Like the sound is some strange kind of speach or communication. The development, and progression, and warping of sounds becomes totally fascinating. Above all, just a really good happy feeling and really enjoying the music. These are some things I think you can realistically expect.