Have you seen pictures of The Beast? The ergonomics and range of motion you get are about the same as what you have when using a phoropter. IIRC, it even has so

Have you seen pictures of The Beast? The ergonomics and range of motion you get are about the same as what you have when using a phoropter. IIRC, it even has some of the same "positioning your head in the right place" hardware as is used by some piece of optometrist's equipment or other.