Has anyone tried these?
According to user reviews and accounts on AV Forums, these perform better than Panasonic's current active 3D glasses. Images have less tint, are marginally brighter, with a small reduction in crosstalk. The glasses are reportedly a more comfortable fit, too, and slightly cheaper.
I might buy a pair, but I wanted to do a little research first and see if any WHF forum members have given them a try.