This review is as a new owner. I got it a few days ago and put it together in just under 30 minutes. It was very simple as long as you read the instructions for the less obvious bits. It rolls very smooth.
Very fast delivery and easy for one person to assemble in about an hour. My 11 year old son loves the smooth ride but he does have to be careful not to over steer around the corners.
I bought this bike for my 11 year old autistic son who is unable to master riding a traditional bike do to the severity of his autism. Overall this bike seems to be very well constructed with what appears to be high quality parts.