I had the Rugged Ridge dual battery tray in my 2010, which was sturdy and worked great. I am ordering a MORE for my 2013 as it looked to be the only one at the time I ordered that would fit dual Diehard Platinums. The Genesis version looks like a very nice complete and tidy package and I would be tempted to go with it if I was starting from scratch.
I wanted in cab monitoring of both batteries so I went with a National Luna Split charge system which has worked very well. I went with their kit but if I had to do it over I would just get the two main components, the intelligent solenoid and the controller because when running it with a winch, you need to upgrade the wiring and you don't need the fuses that are supplied in the kit.
I can dig up some pics if you like.