You won't believe how much better braking feels when you change out all your brake lines, esp. with new OEM brake-lines which are using better materials.
As stated previously, if you must use stainless-steel braided brake lines, be sure to inspect them at least monthly, esp. if there is no continuous plastic sheath to protect the braid from contaminants.
Dirt can get into the braid, and cause abrasion to the hose underneath.