Product arrived well packaged. Quite easy to assemble. A very comfortable chair. No regrets. 
I gave it a 4 only because when assembling the legs of the chair - it is not clear which ones go to the back and which are for front. It will be nice if they had a label. The instruction do say that the back legs should be tilting backwards and the front ones should tilt sideways - however it takes a bit of trial and error to get the right legs. The difference between them at first glance is very hard to tell. 
Aside from that - no regrets. Great buy!