If you're a fan of classical music in any way whatsoever, and especially if you like romantic dramas, you MUST watch this. It's almost worth it just for the music, but it's got a great story behind it, too.
This is an awesome "Chick flick" type series... i.e. great to watch together with your significant other. Only one problem for me -- my wife despises subtitles, and refuses to watch anything that uses them. So I was *very* disappointed when FUNimation announced that they were canceling the English dub and were only doing a subtitled version in the US. I would have bought the dubbed version of this in a heartbeat so my wife could watch it. EDIT: yes, this did actually get dubbed eventually, and I did buy it. :)