Bleh, I just don't feel comfortable using them on a daily driver. Perhaps if I planned to replace them every few years but I don't, so I'll stick with OEM. If you plan on going ahead and getting some, keep in mind the following:
1) Get DOT approved lines, not some cheap no name brand.
2) Be aware that over time, dirt that becomes trapped in the braid can abrade the teflon tubing. With that in mind, try and purchase lines that come with a plastic sheath over the braid for protection against road grim.