This system is not new, the Jim Stepp's have been around for a long while. So to me, knowing that they have been around a while and that very few people use them as a platform should tell you something. I don't like them for the simple reason that it is difficult to get them all on the same level. They kinda have to be staggered as you go around the tree, that's why I cut the rope off some and welded a chain link in the bend so I can put them on a ratchet strap, so they are level all the way around the tree. I like the idea of multiple small platforms compared to one large platform. I am just not a fan of the rope design.
As for a ladder I don't like them because I don't want to have to put 10 ropes around the tree to only get 20 ft, I can put 4 muddy sticks in a fraction of the time and get the same height for the same weight.
I bought a set back in 2009 and outside of the 4 modified one, I don't use them anymore.
Thanks,
Boswell