I got a pair yesterday for use with my Mitsubishi WD-92840.
The initial charge time was pretty much right at 3 hours as the manual stated it would be. I'm currently using the IR receiver cable and it works as advertised. The IR receiver itself isn't very sensitive however. My HDTV's IR blaster reaches over 12' but the Monster IR receiver can only "see" about a couple of feet at the most and doesn't have the range of my other IR 3D glasses' IR receivers.
When a 3D signal was detected for the very first time, the unit locked in immediately and the glasses synced as soon as I turned them on.
The image through the glasses looks great, there is less lose of apparent brightness, color shift at off angles is normal/minimal and there is no color banding with certain gradients like the less expensive 3Active/TrueDepth
glasses I have tried. These glasses overall appear to have the same great quality as the Mitsubishi branded Xpand X103's I use.
I've really just wanted a pair of 3D glasses I could use exclusively for myself that were rechargeable and of good quality: I've finally found them.