I love the design and love how comfortable seat is. Back is not as comfortable simply because its a hard material and curvature of it, is not really following your back. My husband has bigger issue with this then I. Personally I don’t mind it but if you are picky about those things, be aware. I would otherwise give it 5 stars. 
One of the chairs also seems to be lower then the rest, due to base being little bent which makes me wonder if this is gonna be issue over time but I ordered replacement for that part and I assume it will go as smooth as always with Wayfair.