It does work well, considering what it is attempting to do. It is the feature of HiJack that I use most (which is why I ported to to the Rio Receiver as well).

There are some tracks that you have to turn VolAdj off for, because you get very obvious artifacts (the volume "pumps" up and down) with them caused by VolAdj. Thankfully these tracks are very rare and it is easy to turn VolAdj on and off with HiJack.