I used the Remote Sense cable when I had a single M III SE. It is a great cable. It's comparable with cables costing a lot more. There is simply more control (which is what this cable is supposed to do) and there is more detail and nuance with this cable. I have the Eichmann silver bananas and it was a great improvement over the regular termination.
Unfortunately as Bbro pointed out, I cannot use this cable now as I have two M III SE's in balanced configuration.