Initial experience was half OK. Ordered a Velux window. The website gave me 5 options for flashing, I carefully went through each option (which is a pain because you have to open a new page to view each one) and selected the one which was the best option for my tile profile. Products arrived, come to fit today and the flashing is incorrect. upon further inspection, the correct flashing I need is not in the list of 5 options on the product. Is this my fault or the supplier? They think it's my fault! Spoke to a guy called Nathan - refused to listen, charging me extra carriage for delivery and I have got to pay for the return! Their customer service is obviously a 'we're right and the customer is wrong' attitude. A very, very bad culture in today's market! I have many more roofing products to purchase as we are in the middle of a £500K project. I will NOT be using Roofing Superstore again. Avoid this company - do NOT use them. Very poor indeed!