It's good, although unless I'm missing something there is no easy way to return to the 'timeline' video once you've finished watching an individual video, or want to quit before the end. Also, if you watch on YouTube you get ads before the individual videos.
Scary to think that ABBA were only producing music for eight years, though.
Originally announced in this tweet:
Check out the ABBA interactive time line - A YouTube first! youtu.be/BPozYQmYrf0
— Universal Music UK (@UMusicuk) September 3, 2012