I have an ARB but I wish I'd paid this little. I did make a comment on an earlier thread about what I'd 'heard' about Edgestar (hit and miss quality) but the price is right , and if it's working, it's working. I certainly don't care ablout branding as long as it works.
As for the LV cutoff, I was thinking of investing in one of these:
http://www.ebay.com/itm/KOOLATRON-1...839?pt=LH_DefaultDomain_0&hash=item3f0e845b77
It think the quality is low, and a techie guy could probably build his own, but it serves the purpose of protecting your starting batteries....
I would get an adjustable one.