I have a Samsung HW-550 (matches nicely with my Samsung television), and I like it, mostly. Sound quality is good, subwoofer is wireless, which makes for easy room placement, and provides good bass without boom-boom-booming my neighbors.
My biggest concern in buying the soundbar was to maintain a high "WAF" (Wife Acceptance Factor). Many soundbars require a separate remote, and having to go to a separate remote to adjust volume would be unacceptable. The combination I have works through the single television remote, which is nice.
It does have one glaring "bug" in that the television remote does not turn the soundbar on -- ideally it should turn on with the TV, but this requires a separate action. But this is done once per viewing session, and so it's not a deal breaker.