Not knowing which model to choose (especially at asking price for Panasonic 3D active glasses), I thought that a model such as this, with ref. superior to other goggles would be better or more recent (that is) but I found that the TY-ER3D4ME model seems more efficient and with better viewing angle and more comfortable to wear.
I should watch TV with glasses and once the 3d glasses on top, it is rather unpleasant because either she slips the nose or having two frames gives the feeling of losing an angle. My plasma is still in "break", I found the very dark image when the 3D glasses on my nose. So it will thereafter I envisage a specific setting to use with 3D glasses.
In short, with 3D glasses, I think it is especially important to use contact lenses.
But it is impressive how this advanced technology to the point that I prefer now watch a 3D movie at home than go pay 13 per person at the movies, or 3D glasses are not "active" but passive . (And very few wearable)
In short, I think if we want Panasonic 3D glasses, he should rather opt for TY-ER3D4ME. But I find horribly expensive.