All I know is Like An Everflowing Stream is a great, great album. The rest of their material I've yet to hear. Once you hear Override of the Overture (first track off LAES), you'll be hooked.
You can get Pieces (with the awesome I Wish You Hell) on the re-release of Indecent & Obscene CD. You should but BOTH these discs if you are after brutal old school Swedish Death Metal!
Even though the first three are great the band has gotten worse with each release. Indecent & Obscene is solid but still does not touch 'like an everflowing stream'. The vocalist also has gone way downhill.
I don´t know from which album it is, but the song " Dreaming in red" is a killer. There must be a video of the this song around also...
Laefs is a milestone, as cult as Necroticism.