I tried to cancel the order a few hours after making it. I was told it was too late that they had already sent invoice.

Then, I tried to refuse UPS delivery and it was dropped off anyway. Then, I started the return and was charged $16 for return shipping...on something I canceled before it came off their shelves. I'm sure there's some really important reason, but being unwilling to work with the customer is not good practice. 

That was my last purchase ever from Wayfair. Never again! 

(By the way, I canceled because after seeing review pictures, the side walls of these tables are just cardboard and it looked extremely cheap.)