It's remarkably different from anything they put out before. Check out their recent remix work; it's very similar in style to the campfire headphase. Specifically, their remixes for Beck (Broken Drum), Boom Bip (Last Walk Around Mirror Lake), and cLOUDDEAD (Dead Dogs Two). There are actually guitars on this album! Also, it's more 'chill-out' than anything else they've ever done. There are lots of half-heard distorted voices again, but the context tells me they're probably not talking about satan this time. In terms of complexity, it's somewhere between Geogaddi and Music Has the Right to Children. Lots of tape fuzz and some of the smoothest synths I've ever heard. It's worth the time to hunt down Japan-only bonus track, too (it's called Macquarie Ridge).
Also, check out Caribou's The Milk of Human Kindness, I view it as kind of a companion album to The Campfire Headphase.
Also, Helm: rock on! Have you checked out Andrew Plotkin's stuff at all? It's great. So is Adam Cadre's.