Don't really take them on true long distance backpacking hunts where weight is critical but have been very happy/impressed with the Amazon Helinox knock off after over a year now.
Amazon.com : KING DO WAY Portable Ultralight Chair Compact Folding Chairs with Carry Bag for Camping /Fishing/Hiking/Picnic/Beach/Outdoor Sports : Sports & Outdoors
The chair zero is certainly lighter, with a claimed weight of just over a pound vs. 2 pounds for the knock offs, but if I am going on a true backpack hunt then neither style of this chair is getting taken if weight is critical and bringing the Thermarest Trekking chair for my sleeping pad.