Durafix Aluminium welding rods

I have seen this sort of thing demo’ed at trade shows etc, but have always shyed away from anything that uses a “spruiking” style of attention grabbing.

In my quest for some lathe tools, I somehow came across this product called Durafix aluminium welding rods. It is a fluxless aluminium repair system and actually looks bloody good. Rather than me try to explain it, just watch the video on the link below. I reckon it would be really handy to have some of these down in the shed for minor repairs and would be great for radiator repairs and other die cast breakages. i.e. clutch and stator covers
It looks very easy to use, just like soldering.

http://www.weldingtipsandtricks.com/durafix-aluminum-welding-rods.html

There is an aussie site for the product, with alot more info and costing. http://www.durafix.com.au/index.php

Has anyone used this product? If not, how about one of you cashed up blokes get some and do a product review, or even a workshop manager buy some as a trial for their work, and claim it back on petty cash. I reckon the Navy would find this product handy to fix up cracked torpedos, depth charges, aluminium battleships, seal savers etc.