Stainless Steel CFWC

Saw this in the new Williams catalog.

http://www.williamsbrewing.com/STAINLESS-CONVOLUTED-COUNTERFLOW-CHILLLER-P3152C107.aspx

I have a 25ft one with rubber hose that works great. Saw this one and it is hard not to fall in love and want to upgrade.

Any thoughts on the overall function of this unit...?

It has bling factor but I would think that the copper version would be more efficient.

My guess is this is as efficient or better than the MoreBeer copper unit.
Copper is slightly more efficient at transferring heat, but the stainless unit has 1/2" inner tubing, where as the copper unit has 5/8".
1/2" means more wort in contact with coolant than the 5/8" - increasing cooling efficiency. Enough to overcome the copper vs. steel efficiencies? Probably.
Stainless is also more durable, easier to clean/sanitize, and lets face it, looks better.
The fact that the stainless unit is cheaper is just the icing on the cake for me.

ooohhhhhh shiny!