UPDATE: contacted wayfair and they immediately sent a replacement. Very happy.

Original post: Both arms came broken. One arm was completely broken in two pieces, the other had a fracture in the timber that will no doubt break when some weight is applied. The angle of the arms and the seat cushions are slightly misaligned meaning its difficult to get the screws and holes aligned. Have asked for replacement arms so we'll see.
The seat cushion itself is firm but comfortable. The seat is low and the back is also low. I'm 5'10 and it's just comfortable.