Just fitted a hel braided line to the rear on my bike. Feel is much better, I find it feels like it has more power although I have just put in new seals so that might be part of it... Easy to change, and bleed just the same as fitting OEM rubber ones.
Well worth doing as the OEM lines on the fazers are getting on a bit now and should be changed every few years, can't remember how many years but it's one of the jobs that hardly ever gets done.
Chris