A reasonable alternative
If you're looking for an Eames style chair but can't afford the cost of the genuine article, the reproduction from theiconicchair is a reasonable alternative.
The chair arrived promptly and was well packaged for shipment. The single package is heavy so unless you have equipment to assist moving the carton, two people will be needed to relocate it.
Once the carton is opened the assembly is simple enough. The upper part of the chair is fully assembled except for the arm pads. All that needs to be done is attach the base and arms to the chair, attach the post to the ottoman and place the post into the ottoman base. The assembly instructions are basic, but pretty clear.
I own a genuine Eames chair purchased years ago so I have a point of comparison.
The aluminum bases are essentially identical in execution. The obvious differences are in the quality of the finish on the plywood and the leather. That would be expected for the considerably lower price. That's not to say the quality is poor, it's actually pretty good for the price paid, but the leather is thinner and waxy in its feel. It's soft but has something of an automobile Nappa leather feel to it, rather than a furniture feel. The finish is clearly a one-step stain and seal spray-on versus the stained and clearcoat of the real Eames. As others have noted, the cushions hiss when you get up as air is drawn back into the cushion, where a real Eames doesn't. The seating comfort is similar between the two.
It's too soon to comment on durability over time.
To sum up, this chair is a reasonable for the price alternative to a genuine Eames chair and appearance wise, would be hard to tell apart unless you have the genuine item to compare to.