To begin I must say I am happy with the building.The buying and delivery of the building was very straightforward.The instructions around the door caused some issues and could be made clearer.The bad points that when installing you have to protect the wood as you go along.ie retreat the wood the shed stands on ,protect the underside off the floorboards.The door and window cannot be screwed to the building due to expansion and contraction,so they move around and sometimes stick.3 coats off protection ,costing over £100,if not the warranty is invalidated.So yes I'm happy but don't try claiming on the warranty if something gos wrong because there pretty covered.It would be interesting to know if there own installers do all off this.