If a 2-seater sofa is equipped with a pull-out mechanism, you should check its good condition. The construction of this mechanism should be smooth and without sharp edges. Covering should be sewn not tightly to the motion field of metal elements. This will help prevent rapid wearing out or tearing of the sofa upholstery. The seat cushions should be firm and elastic. Moreover, cushions should recover their shape after being pressed down. If they have not gotten their original shape, then be ready for the fact that the fabric of upholstery will stretch and lose its form. If you follow these pieces of advice and check all moments in this 2-seater sofa, you will understand this is something what you were looking for.