I have an OR-Fab front and Poly rear. I, pretty strongly, believe its a sound option for a double-duty rig. There will always be those that stand on their soapbox for frame tied cages and claim all else is shit. While I agree all else is not -as good-, there is a place for the in-between setups.
If I started over, today, I'd have a front to rear poly cage with frame ties. At the time, that wasn't quite an option, the front poly was an option..but not the current "through the dash" version I would like to have today.
There is a thread on the PSC stuff that can be referenced, most of which has still yet to be answered..but my engineering classes have pretty much told me what I need to know in regards to most of the structural concerns I've had about it. But I won't beat that dead horse any further than it already has.
I personally have no desire to own a Rock Hard, PSC, or River Raider given the current options available today. I still wouldn't mind changing a thing or two about the Poly cage however.
I'd like to see that be one bent bar from the soundbar to the floor and have a pickup bracket to the windshield frame like the OR-Fab. Just better load paths and a stress concentration at that joint that could be avoided. I can see why they wouldn't go that route, for the added manufacturing complexity..but I'd like to see it go away still