Aardvark Ethernet noise isolator

Has anyone tried one of these? Love the name...

I have an Ether Regen which outputs fiber to my Lumin X1.

So, I guess this device would go into the input of the Ether Regen but would its use of fiber out negate the Aardvark advantages? Will I be able to tell if it improves sound quality?

Anyway, I am such a tweaker that I went ahead and ordered one anyway.

Just looking for anyone who may have experience with the device.

ozzy