Excellent. I bought a couple of the "green" ones (it's more like an acqua of sorts) and the color is true to what you see online, plus the fabric quality is very good. They're not only comfortable but they do make an statement on any room and definitely look more expensive than they are. 
Had a small issue with one of the chairs and Joss & Main customer service was superb on fixing it. They sent a replacement in a few days. Shipping was super fast.