the damned thing has a return policy. 

That is the only reason when one should contemplate buying this Synergistic Hot Interlink Thingy , certainly at that price.

A general question to all pirates is about to follow but my motivation comes first.

I have worked for a Hifi shop for many years (among other things) and all of the tweaks (I will include cables here as well) had a return policy.
In the years I worked there lots of 'things' were sold but hardly ever was something returned (to get a refund)

I have bought (tried) a lot of things via webshops with a good return policy and, regretfully, had to return quite a few items as they didn't appear to be what I was looking for.

By the way I am ALL for buying 'things' that may not even do anything in real life at all as long as the improvements you HEARD were WORTH it.

The question to the pirates is:

How often did you use an offered return policy and for what type of 'equipment' ?