Summary: My Vizio VHT510 is in transit back to Vizio as of 9/23/11. This product had a known problem with the LEDs on the soundbar disappearing after very little use (mine disappeared the 2nd time I turned the unit on). Reviews I read indicated that Vizio had corrected the problem (which is why I made this purchase). Vizio Tech Support agrees, and said that the serial number Wal-Mart sold me was from the defective batch.
Summary: Love the sound. Unlike other's I actually managed 2 days before my LED lights went out. While it still functions, IT'S ONLY TWO DAYS OLD!!! The LED's don't just adjust the volume. They also indicate what level the sub is, the bass, the treble, center speaker, and rear speakers. This is really important when you are concerned annoying the apartments near by. The top of my sub came all scratched up. This puzzles me.