Yeah TreeHopper steps are really stable and comfortable, I use the instead of a platform at hunting height. However their strength is the same their weakness - those extra flaps don't allow them to pack well in a pouch.(been thinking about switching to squirrel steps for this reason)
In regards to a chair, you might want to look into this one:
https://www.amazon.ca/Trekology-YIZI...s%2C179&sr=8-5
It's more on expensive side, but weight, packability and comfort can't be beat. (if you pull a trigger on it, get an extra mat for ground, so you can use it on soft surfaces too)
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