I have two RGPC power stations I purchased in the late 90s. I have not detected any improvement with their use other than they provide additional high quality outlets. I have, however, measure current limitations (~100A instantaneous current delivery vs. 700A plugged into the wall), and no reduction in noise using an Entech line noise analyzer.
They are no longer in my system. They have been replaced with much more expensive and effective Shunyata products.
They are no longer in my system. They have been replaced with much more expensive and effective Shunyata products.