A lot of the artwork, and this goes for the videos too, is by the guitarist Adam Jones. However the lyrics to my knowledge are all Maynard.
If you'd gotten into them in high school you would have totally gone apeshit for the conceptual junk. DUDE there's this song that's just electrical noises for four minutes! DUDE DUDE DUDE, they did a German hash cookie recipe as an industrial song!!! DUDE BRO BRAHSKI it says "God" in the dude's brain in the liner notes!! "See you auntie"? I don't get that one, bleurghski!
Hey, remember, I thought the murder mystery in Scenes From A Memory was "profound" when I was 16 and got online to read all sorts of now-long-gone conspiracy shit about it!
Oh one other comparison, some reviews compared Maynard to Peter Gabriel because he did all sorts of costumes and shit on stage. Usually black speedoes and crap like that though.
I think SFAM is actually produced about properly. Note also that "Home" rips off "Forty-Six & 2."