At one point before the Model 5 released, the designer and the KLH rep (at the time) brought them to our store. Assuming the production models are the same (they look identical), they were excellent speakers. Not a fan of the look personally, but the sound was extremely musical and non fatiguing. Very balanced sound with great soundstage and bass. Dramatically better than their other speakers (Kendall etc) which were absolutely awful. I don't think they were designed by the same person.
We are not KLH dealer, never have been, and wont be. So just giving props where they are due. Great speaker.