Water wetter: who is (has been) using it??

[Vronsky]

Am considering using water wetter concentrate with distilled water as coolant during the Summer period. Antifreeze significantly decreases water's heattransfer capability. Water wetter contains corrosion inhibitors and claims to bring down water's surface tension enhancing heattransfer even more.

Does anyone have any experience with this product ??

Thanks,
V.