I use the EZY climb coated ones. I choose coated to eliminate noise in fanny back. They are a fixed step. I do NOT like their folding steps.
Traditional steps (even the good ones) take a good amount of effort to get all the way into the tree. You would probably be sweating when you got to the top. These EZY steps are designed to go in super easy and fast. Poke a tree, any tree, and it will sit there. Most trees you can start screwing them in with 2 fingers....not kidding. I carry 12 or so in my fanny back....insert the first 3 from ground and start climbing. Fast Fast Fast. Can get 20' and hung in silence. There arnt sticks that could make noise banging. Once you start up a tree you never come back down to retrieve more sticks. go go go. It is certainly not perfect for every situation, but it is a great tool to have in the bag that I have called upon. Trust me I would rather have 200 permanent sets, but that's not practical for many reasons. So I have this tool along with a lone wolf climber. I went and hunted Illinois on a buddies property 2 years ago that I had never been to.... no scouting, no time to pre-hang stands. This is all we did for a week straight. It was no big deal. Good tool to have IMO.