The promise of similar image quality for roughly $200 less got me into buying a VIZIO TV. Roughly one hour after unboxing and switching it on for the first time, the TV suddenly blacked out. It powered on, but with no image or sound.
After some basic troubleshooting (power cycling), VIZIO's support informed the issue required technical intervention, to be scheduled in a couple of days (this was one week ago and we didn't hear back so far), and to happen sometime within the next 7 to 14 days.
A quick search on Google showed this is a recurring issue on many VIZIO TV models, happening both to brand new TVs and to units that had already been fixed in the past, sometimes more than once. Too bad those results didn't come up when searching for general reviews before buying. In light of all of this, there was no way we'd keep this TV, even assuming VIZIO would fix it.
Walmart's customer service was absolutely supportive and promptly refunded me (5 stars here!). I certainly won't buy VIZIO or any other budget TV brands in the future.