Sorry about the late reply – had to join the forum first!
I have an ATS 1050, recently inherited from my late grandfather (I believe it was his last ever A/V purchase). From what I've seen on the 'net, the two sound bars are identical.
Mine is about the same width as the screen on my old 40 inch Samsung LCD TV, which might make it look a bit narrow in front of a 58 inch. That said, its surround mode certainly makes it sound wider, and is surprisingly effective in a room which was not at all set up for surround sound. It's clear voice function can significantly improve the clarity of any dialogue, although it is not adjustable. While it has an output for an external sub woofer, the on board sub woofer is incredible, and can cause actual vibrations. It is certainly better than the very cheap Bush sound bar I had before.
I suppose there are only two real drawbacks with it. Firstly, it's simple LED lights based display, which can be unclear, especially when making adjustments. It is clearly visible when wall mounted, but not visible if deck mounted unless you are standing over it. Also, it has no HDMI inputs. Instead, it has both types of S/PDIF connectors (optical and coaxial). This means it cannot receive HD audio bitstreams directly. In fact, it's can only read two sound formats, two channel PCM and Dolby Digital. It cannot read DTS, even in its core compressed form, which means that most BD movies would have to be re-encoded in the player (I believe all players can do this).
All that said, it is a satisfactory low profile sound bar, especially with devices that output Dolby Digital sound. Mind you, you might need a few minutes to synchronise it with the TV picture if connecting to external devices. This is probably the case with all sound bars.