I first heard about Australian direct from the 1hr 'Ultimate dual battery system educational video', if you haven't got around it, give it a watch! I thought i understood 12v and dual battery set ups but it goes into a great deal of depth and helps light up any grey areas you have. I have read a lot about kickass products and compared them to similar products on the market. In terms of quality and price, you don't need to look further. Ozzy made products, with warranty already sets the tone that it is strong and durable product. Currently have the hot water camping system and 12L pump on its way. Cheers. Dan - North Queensland