Cunifer Brake lines?

Has anyone used this stuff? Probably the next thing on my list in my Dart build is routing of the brake and fuel lines. With the frame connectors in the way any pre bent tube isn't going to work so I was looking at cunifer. I don't want to use stainless because of sealing and work hardening issues and I want them to last longer than steel without looking terrible. Price doesn't seem to bad either I can get two 25ft rolls from summit for $36 a piece. Thanks!