This is a great unit which, when combined with audio grade power cables, will deliver clear improvements in sound quality. In my setup the soundstage, imaging, detail and base control clearly improved. The results will depend on your equipment of course.
The unit has excellent overall build quality and is delivered with clear instructions.
I have Just 2 remarks:
1. My audio grade power cables fit a bit loose in the power plugs. Maybe the problem is with my cables...
2. For optimal result, you should replace the standard power cord delivered with an audio grade power cable a well. I did this and the improvement is clearly audible. This is obvious and it should be mentioned in the description. Even better, an upgraded power cord should be offered as an option.