I got this product for my 40" Samsung LED 3D TV and I am more than impressed!
The soundbar alone has a very good clear sound that is better than the speakers built into my TV, and my TV speakers are excellent. But the subwoofer is what truly makes this soundbar special!
The Subwoofer makes you feel like you're actually in the cinema! It doesn't only sound amazing with scenes involving explosions but it often makes relatively quiet scenes sound very immersive and impressive.
As for the surround sound aspect of things, I have this in a relatively small room and the surround sound properties aren't that noticeable. However what is noticeable is the amazing sound itself that does fill up the entire room in that respect but not in a way that it feels like the sound is actually coming from various points in the room.
Although, saying that, I was watching a horror film on Blu-ray, "REC 2" if you must know :), and there were a few scenes in the film where people were shouting over to each other and talking and it almost felt like some of the voices were coming from behind me. Which made things even scarier as it was a horror movie.
I haven't had the soundbar that long, only for a few weeks, so I probably haven't had enough time to experience it's full potential. I also believe that the fact the sound bar is in a small room is causing the surround sound to be more ineffective.
One of the things I love about this soundbar is, when watching a movie I've seen before it's like watching it for the first time again, because you hear sounds you could never hear before. All the small details that you just can't experience from standard built-in speakers on the TV.
So, in conclusion, this product is excellent. I can't complain and it well deserves a 5 star rating. I recommend this 100%!