I know both platform racks, but from other vehicles. I used to have a Frontrunner roof rack. Those were still the platforms, which where welded together, expecpt the feet. That one was very stable, reliable and very good. With the newer ones, which are bolted together, in my opinion and experience, the quality has extremely decreased compared to the old ones and they are not as good anymore. The Rhino Rack platforms, on the other hand, are very good in my opinion, very well thought out, good quality, very stable.
If I were buying a platform rack today and had to choose between these two, I would definitely go with the Rhino Rack.
I am curious about the experiences of others.