"It has the adjustment features of a premium chair without the premium build quality."
The '4D Soft Armrest' means the arm pads adjust up/down, forward/back, in/out, and pivot. This allows precise arm positioning for different tasks, a feature typically found on chairs costing over $700.
This chair is for someone prioritizing maximum adjustability on a sub-$400 budget who is willing to risk long-term durability. If having 4D arms and a flexible lumbar system is more important than brand reputation or a multi-year warranty, the feature list is compelling for the price.
Buyers who value proven reliability and 'set-it-and-forget-it' ownership should look elsewhere. The unbranded nature and complex, unproven mechanisms introduce significant risk of premature failure compared to simpler, more robustly built chairs at a similar price.