Published at Wednesday, November 07th 2018, 13:34:53 PM by Kristina Barlow. Cuisiners. When purchasing sofas, you should first select one that is very durable and long lasting. After this, you should select based on comfort. Cushions should be supported by a system of springs. Hand-tied 8-way springs are your best bet, but serpentine work, too. Test springs by feeling them through any upholstery. High quality construction means springs close together.