Check out this guy's videos on the Tree Saddle. His videos will give you about all you need to know about using one. He gets around like a Monkey in one, and gives shooting position demos on shooting a longbow too. I wouldn't want to be a big Buck in his hunting area!
http://www.youtube.com/watch?v=H1hPTQkmgOc&feature=related Also, I just got "Climb Paws" to use with my Tree Suit or Anderson Tree Sling, and am quite impressed with them in practice, though I won't use them for actual hunting til next week. I hunt public land and can't use steps. They even sell a pair, called "Top Paws" which are angled for the top row for use with Tree Saddles etc. They definitely feel as though they will be much easier on the feet than steps when hunting for hours. I want to get just high enough to clear heavy brush, 15' or so. I've read that with the Tree Saddle type set-ups you can get away with more than regular stands so hunting lower is easier. I have a Tree Suit and an Anderson Tree Sling to use them with. The Anderson Tree Sling is not much bigger than a softball when balled-up. It, and the Climb Paws fit in a medium size pack, and are light weight, making for a very mobile set-up, and a handy tool to have when hunting unfamiliar areas. I hate to carry a ton of gear and mostly hunt the ground, but this will make it easy to get up in a tree for that last couple hours of light if the right situation presents itself. If I plan to hunt one spot all day or for a long sit, from a tree, as in the Rut, I'll use the Paws with a Hang-On or the Tree Suit. As in that guys videos it appears easy to shoot, with practice, with longer bows from one, but I've practiced using my new 50" Ambush Bow from Two Tracks and it's a match made in Bowhunter's Heaven! I still can't get around a tree well enough to hunt 360", but I can't shoot 360" in any other type either.
Do a Google search for "Climb Paws". They aren't sponsors here so I won't post a direct link. Good videos on their use on the site.
I'll have actual hunting experience with this gear soon, but from practice it surely seems to have all the essentials for working out great.