I've had my Vizio M3D651SVD for just over a year now - picked it up on Mar 9 2013. As others have noted it is very reflective but in our house we have a large theater room so we have no issues with that.
I have watched 3D movies and I love watching people jump when it looks like things on the screen pop out at you LOL. I have also played Call Of Duty in 3D and it is amazing. It literally adds a whole new dimension to the game, pun intended.
We have AT&T Uverse for our internet and TV and recently we have started noticing that if we switch from watching a recording to TV the sound mutes. I have not figured out how to correct that except to power cycle the TV. Not a big deal, just wondering if anyone else has this issue.
I am not very proficient with the settings so I was wondering if anyone can let me know if there is a way to have the tv automatically detect the screen settings and adjust? Sometimes a show we are watching has writing that is off the screen but a commercial may be full screen with no problems. When the show comes back on I have the black sides with a smaller screen and if anything shows on the screen some of the letters may be off the screen. Not all commercials are full screen either, so just didn't know if there was anything I could do about that.