Dobinsons Suspension Thoughts

What are peoples thoughts on the Dobinson's MRR kit? I am looking to get a rebuildable suspension that will survive the salt belt for a few rebuilds. I go out almost every weekend and drive up to a few hundred miles completely offroad with lots of on road driving to get there. These trips are mostly washboard loaded down with gear and some slow speed crawling. I have looked at OME BP51, Elka 2.5 and Fox 2.5 but it seems like the MRRs fit the bill the best.

Is there any corrosion issues with these?

Any concern about failure points?

 

@Crikeymike