The double cellular shades we purchased fit perfectly. At first we didn't quite understand the installation instructions, and a quick call to Blindster customer service clarified everything, and they were simple to install. Before I ordered, the company provided me with all the free fabric and color samples I needed to make that decision. Once ordered, the blinds arrived in about a week. Compared to shopping at Lowe's or Home Depot, this saved us so much money, and we didn't have to have people in and out of our house.
Yesterday, I called and asked the company about what I would need to keep the blinds in place when closed with the window opened and breeze blowing. The customer service rep told me she would order me "blind stays" from the factory at no charge. Wow!