I am a on hands trades person with 50+years experience of the construction industry
I purchased the 7x7 shed recently .
On assembly I disovered some parts were poorly moulded and difficult to assembly because of this.
The curved part of right hand door jamb part BYB does not  fit correctly with the groove in the panel as the groove is shorter than the metal strip.
Also the slots which the panels fit into are still present under the doors after completion without any explanation how too fill these in.
On completion the shed does look good apart for the minor imperfections.
I would advise that a professional trades person is at hand while erecting the shed as do it yourselves might find difficulty 

Over all the