I went the PD route as well and VERY happy with it.
One warning to all, the unit came with the red (+) and white (-) output wires already installed in the lugs so I never thought to check them. Went about two years and all of a sudden no 12v output from my inverter. Took me two tries to find the problem but they had stuffed the wire in too far and the setscrews were into the insulation, not the wire, worked O.K. if they were really tight but when they loosened up a bit there was no more contact. Restripped the wires and all is good.