Some of the words come to mind when you listen to this album include "delicate", "artificial" and sometimes "prophetic". "The Man Machine" (1979) was Kraftwerk's seventh studio album, in which they continue their trend of what on the surface seems like naive praise for modern technology and the comforts it provides. Closer examination reveals a wariness which doesn't quite become fear, but it's still like a warning of sorts, which is what I meant by "prophetic".
Kraftwerk (German for "powerplant") were well ahead of their time, releasing albums which are composed entirely of analog synthesizer sounds with little or no recorded material besides vocals.
Recently, Coldplay sampled Kraftwerk's Computer Love (from "Computer World") for their single Talk (X&Y) after Chris Martin (a Kraftwerk fan) wrote a letter in halting German to Ralf Hütter.
Spesh mention: The Model, Spacelab and The Man Machine
Additional trivia: many Malayalam movies produced in the '80s seemed to like using Kraftwerk, in particular, The Model as a stereotypical "western music" prop :)