We ordered 4 x 6ft panels. The first issue was they advertised in stock and next day delivery. They were not in stock and it was delivered 2 weeks later. You shouldn't advertise next day delivery when out of stock. Second issues is more fundamental. We received 4 x grey panels and installed the first 3 no problem. After installing the 4th it became obvious that the shade was lighter. Clearly from different batches. The response from the company was very much "tough luck" you installed so now not our problem. My advice is inspect closely as they clearly have QA issues or ship mixing batches. If you don't you have no come back and they aren't interested. A credible retailer / manufacturer wouldn't respond in this way. Personally for the price you pay and the product quality / service it just doesn't stack up and i would avoid