Video eyeglasses "iWear AV 920" realizing a 62-inch virtual screen

"IWear AV 920" released from Vuzix Corporation has a 62-inch virtual screen and 640 × 480 high-resolution twin LCD display and supports video output such as iPod · mobile phone · portable DVD player · game machine, It weighs only 82.2 grams. You can use it while wearing glasses.

Also, the release price in Japan seems to be 59,800 yen.

Detailed specs etc are from the following.
Vuzix - AV 920

This AV 920 is virtually the same experience as seeing a 62-inch screen at 2.7 meters away, the field of view is 32 degrees, the 24-bit true color (16 million colors) display is possible, 60 times / Sec progressive scan update speed, it can be used continuously for about 4 to 5 hours with rechargeable lithium ion battery. Moreover, it has equipped with detachable integrated speaker and AccuTilt viewer which moves up and down at an angle of 15 degrees.

Although it is a cheap one for the product of this hand, how is the actual comfort and so on?

It seems that it is supposed to be used in the atmosphere like the image below.