Syncro Uni is really a no brainer upgrade.
I’ve had the Syncro cord in the past, but I wanted to be able to use my own power cords.
And that’s also the drawback with the unit - it gets expensive requiring 2 power cords if you’re using good cords.
It gets rid of the harshness and grunge, improving performance with no drawbacks (other than the cost of 2 cords).
I also have an Isotek Genesis one and I wish it had this DC canceling built-in.