I bought a black out blind. It was very easy to fit and, because of their very simple measuring instructions, it exactly fit the recess. I had a question for them and a quick phone call to them sorted it straight away. The blind is excellent quality and operates very well with a strong positive pull chord, that has a wall fixing to keep it taught and away from children who could get their necks caught in a loose pull chord. It remains exactly parallel with the sill and needed no fiddly adjustment to keep it level - something I have had with other blinds. Overall, very pleased with service and especially quality.