My Hooker harnesses arrived today. I went with the five-point system and the rotary buckle. They are wicked looking and certainly seem to be a step up from the stock Van's belts I had in my last RV.
I won't need these for a while, but some folks in the RV community were putting together a group discount and I didn't want to miss out on the deal. Saving 30% made these belts only marginally more expensive than the basic set from Van's. Awesome.