You CAN do minor repairs on leather and faux leather goods, especially if you have the stitching holes already - just re-sew with thread (doubled or heavy duty) by hand.
This page is about repairing wear on a leather couch. Regular maintenance will help extend the life of upholstery covering your sofa.
This is a page about repairing scratches on leather furniture. Pets, children, and normal usage can result in scratches on your leather furniture.
Repairing faded spots on your leather couch may be difficult. Check out some possible solutions on this page. This is a page about fixing a faded leather couch.
With use, a leather sofa can develop worn spots that differ in color and finish from the rest of the piece. This is a page about touching up worn spots on a leather sofa.