I'm a pretty medium sized fan of them. They have a very distinct style. I love "The Moon Atomic" and "Some Origin of Fire" from Love: Part One. "Surrender" from Part Two. Haven't listened to their other two albums much, but I've heard "Distraction" and "The Adventure".
I think I could listen to them all day if I could there is something about them i really like but can't quite put my finger on it.
I think for me its like the way they have done the songs the way where the lyrics meet the music that takes you to a different world I think.