Tom Evans Groove +

I was looking at the Tom Evans website and see that there is a Groove +, to upgrade the Groove to the Groove + is more than the cost of the original Groove. Anybody hear this phono preamp?
We received our demo Groove + about two months ago and it is paired with their Vibe preamp w/pulse power supply. The sonic presentation these two demonstrate so good it I don't even know how to begin to describe it. All I know is they are doing some rather unbelievable things in those little boxes.