Summary: The Vizio M3D550SR is a solid edge-lit LED TV with excellent black levels, although its passive 3D and Smart Dimming feature create some issues.
Pros: The Vizio Razor M3D550SR 's black levels are very good for an edge-lit LED-based LCD TV. Shadow detail and colors are solid, while the matte screen really helps reduce reflections. The TV piles on the features with passive 3D, a Bluetooth QWERTY remote, and onboard wireless. The passive system creates minimal crosstalk, and Vizio includes four pairs of passive 3D glasses.
Cons: The M3D550SR's local dimming can cause blooming and turn completely off during fades to black. The colors were less accurate in darker areas, the screen lost uniformity at the corners, and it didn't handle 1080p/24 sources correctly. The 3D performance introduced too much depth.