when was the last time the brake fluid was changed and how was the bleed procedure performed, It is very critical to follow correct procedure and extremely critical to use fresh brake fluid every year.
very important points in brakes
1 - always make sure the brake bleeding is done via a pipe and jar and that the whole jar and pipe sits above the level of the brake bleed nipple.
2 - at the 8 year birthday of your car - change the rubber pipes that connect the calipers/slaves to the steel lines.
3 - If your brake fluid is old, nasty and black and you press the pedal to the floor fully while bleeding you run an 80% chance of ruining the piston seals in the master cylinder. Make sure manual type bleeding is done at only half pedal stroke and very gently.