It will be interesting down the track to see what life people get, when these things are 2 to 3 times the price of a gel cell etc. Also how they ended up since we know they die without warning, unlike the drop-off that lead-acid give. Having said that, whenever a lead-acid has dropped its bundle, it's never given me any warning. Just two compressions or two clicks.
I note their 360 and 480 CCAs are the same price. Logically one would buy the more powerful one for the same $$, but there must be a penalty somehow- maybe longevity?
The ST1300 one is 240 CCA and $150 FOB, which isn't too bad.