I just received the shipment yesterday and started put it together last night. The directions were hard to understand as none of the pieces were marked A B C or D. Using an allen wrench is terrible...Then we received one wrong piece we received an an extra A but needed another D. I will need to report that as it leave one piece without a foot in one middle sofa with out corner foot. 
I will have to see how easy it is to get that before I will give this a better rating. If it is easy I would rate it a 4 if not this will go to a 1