When I first watched this I gave it a 5 because it was boring (I watched it right after episode 12). However, now, after almost two years after completing Hikaru no Go, I re-watched this and I have to say it's amazingly done. It sums up 12 episodes in 20 minutes perfectly, and it bring back memories of when I watched this anime for the first time. There's not really much to say about it, everything is the same as in the original series, no new characters, music or anything. I strongly suggest you to (re-)watch this if it's been long ago since you've last seen Hikaru noGo! :)