I tried it out this season, and found it noisy. The canvas rubs and catches on the bark of the tree, sounding like Cordura in brush, sometimes pulling flakes of bark off of the trunk. The pivot was silent. I sat at oak and cherry trees.
I found that the easy pivoting made it much more likely for me to move. I got out of the chair and sat on a foam pad like usual, as it is quieter and I sit stiller that way.
The chair is very comfortable, and I will use it for squirrel hunting (rifle), photography, and other non-critical woods-sitting.
Killdeer