I was thinking of the stainless steel also, but my indie (who would have done the work) told me to save my money unless I planned to drive the car hard. However, I believe the manual calls for changing the brake fluid every 60k miles. Brake fluid used to be notorious for absorbing water and losing it's ability to dissipate heat. And if you replace the fluid, you de facto bleed the brakes.

Mine stops plenty hard, but with ABS I cannot lock it up. That's a good thing!

 

Have you checked the brake pads or rotor? If you bleed the system and still having problems that may be it. Last time I had to change the booster the peddle would almost hit the floor until the booster was completly gone then the peddle would hit the floor every time.

 

"About saving your money unless you planned on driving the car hard", that can go both ways. If you drive the car easy, with the stainless steel lines, you would just have nice stopping power. Stopping power is always good, its safer too, you can stop on a dime LOL...thats how I see it. I understand what you are sayin, but it's no price on safety, I would still get them.

The rubber lines lose pressure after years, the steel lines dont, it could be like preventive maintains.