Items are really heavy but Wayfair provides $20 for room delivery, this is really good. 
However, product itself is not well made. I believe manufacture (Vietnam) used cheap materials to make this sectional sofa. There are no holes to place sofa legs (you need to make your own by using drill). Lots of parts were already ripped/ teared/ unbalanced. I believe even they use cheap materials, if they know how to make sofa, it should not be a problem. definately not worth $1600 for this quality of sofa (feels like $700 sofa). Also. these are not "wide seats" its more likely just normal size seats. 
For next sofa, I will rather pay more to get better one. 
for decent customer service and delivery. I would give 5 stars but, considering the quality of an item, giving 1.