It's a little weird viewing video with the MyVu PMV, mostly because the glasses are quite thin, and there's nothing to block your view above and below the edges. Personally, I find it a bit distracting--some clip-on blinders may have made the glasses a little more ridiculous-looking but still would be a welcome addition to the package. As far as quality is concerned, the PMV is passable, but far from crystal clear. Video looks just somewhat washed out, and there was an irritating flickering of the image at the center of the "screen" during some videos that was not present when viewed on the device itself. Sometimes the videos had a slightly grainy quality as well. Sound quality was just fine, and the buds do a decent job of isolating sound.
So is the MyVu Personal Media Player a worthwhile accessory at nearly $200? Not for me. Until MyVu refines the design and tweaks the video quality, I'd prefer to stick to watching videos on the device itself--especially if it's the relatively large screen of a portable DVD player. But if you absolutely must enjoy your videos in "private"--with no over-the-shoulder onlookers--the PMV could suit you fine.