Just picked it up today as Fedex dropped it at mail box area on Friday. I am on 4th floor and we have elevators but it seems there is no door delivery. I had to pick up from downstairs. I thought I lost the package as it was showing delivered and its not there in front of my door.
Anyway I assembled it. Not difficult. You need to peel off the back cover to screw the backrest. It took a while to figure out for me as in instructions I did not see. Its Velcro  attached so you can put it back. I  lured my puppy on to that. It seems he enjoyed it, tried to bite it but I warned him :). Hope he wont bite it off. If grows any bigger then he has to curl up to fit. I like it and it looks cute my puppy uses it or not I got to see. I took his pix while he was enjoying a his treat.