Delivery delayed three days but in itself no great inconvenience for me. But what really hurt was failure to get the blind to function properly. It resists locking in any position. Even a highly capable professional builder I later employed failed to get it to work. (This can be verified). Particularly alarming is that some six years ago I fitted two identical Velux windows in the same room without difficulty. This suggests the company is leaving assembly to the buyer in the interest of scooping more cash. A dangerous short-term measure. I would appreciate either a refund of £114 or - better - provision of a new blind in the easily constructed method. That is the method that has led to two blinds working faultlessly in my attic. I commend Velux for asking customers for their views in an easily packaged manner, allowing details to be given. Too many companies just ask buyers to rate the product or services on a scale with no facility for detail or any finesse. Peter Pallot