Check out timbertall stands. Small company that makes ultralight stands. I've got a baby lite that weighs 12 lbs without mods. Now the seat on it wasn't comfortable so I added a summit style seat to it but it's super light and overall comfortable. I've made quite a few all day sits in it. I also have a treewalker; the walker is overall more comfortable but the timbertall is much lighter and easy to pack for long distances.
Interesting, first I've heard of them. Few questions. Where are they cutting the weight at? Appears to be full frame unlike x stand. Is it just tiny? Second, have you actually weighed it? Several stands are 3 or 4 pounds heavier than advertised. I may be seriously interested in this. I love an x stand, but it's about as comfortable as your average lockon.
1) The stand is smaller than your average stand in terms of width. Personally I like that in that it's almost like sitting in a wing back chair in that when you are sitting in the stand your arms are naturally on the side rails; however you do have room to put your arms inside the stand if you like but it's a tight squeeze.
It's made of aluminum and sounds hollow so this appears where they really cut their weight.
2) Have not weighed it but have compared it to other "light stands" and by feel it feels lighter. As mentioned previously have a treewalker as well and it's significantly lighter.
Advantages--extremely light and packs well, very stable on the tree, has a leveling system for trees that narrow. I can walk a long way with it on my back and it doesn't feel heavy.
Disadvantages--I hated the seat--changed to summit seat and liked it better, it's a little loud (made of aluminum so has that hollow ding to it if you bang the top and bottom). I've got a buddy who turned me on to them and he loves the seat so different strokes for different folks.