Updated: They sound pretty nice. They are clearly vintage speakers, a little soft in the high end, tonally warm and musical. Their sins (and ALL speakers have them) are of omission. They don't image like conventional speakers, but produce a diffuse soundfield that fills the room with music, but won't tell you who's where on 'stage'.
If their style appeals to you (and it's been growing on me...I think they're funky), you should consider them. If you're thinking about KLH, AR, Rectilinear, Advent or speakers of similar vintage, you may find them ideal.