Zum,
They're easy to install..... as stated before, just be careful around the bleeders. The best way to head off problems is to spray them down with PB Blaster and let them soak a bit... do this also to where the steel hard line connects to the rubber line fitting on the frame.
To avoid more of a mess, clamp off each rubber line with visegrips remove the rubber hose and install the steel hose to the caliper side first, then the chassis side. Also, crack the hardline connection loose (don't remove it, just make sure it turns ok), then pull the retaining clip, then disconnect the hardline. Install the steel braided hose in reverse fashion...start the hardline connection BEFORE replacing the clip (much easier to start that way!), and if it doesn't turn easily, do NOT force it..make sure you're not crossthreading it. Run it up finger tight, install the clip, then tighten it down. Now would be a good time to flush the brake system as well. I might add to make sure you use a line wrench on the steel fitting connection and not a regular open-end. Good luck and enjoy the MUCH better pedal feel!