I'm done with SSS 02, and I would like to augment my previous post.

• SSS includes musical numbers in every third or fourth track. I think they are image soungs, lifed as-is from character signles. There was some effort to fit them in though. For example, Squirtle's number is ostensibly heard when she sings karaoke when the gang visits Kagari's bar. Considering how expensive these singles usually are, it's a score (unless you need off-vocal tracks). Sadly, I'm not impressed by composition and arrangement.
• It took me a while to reconcile myself with the fact that the anime and SSS have no common scenes whatsoever.
• Credits for the CD list several artists, but not seyuu. Weird.