I read ChiRunning in March and have (pretty much) been doing the technique since then.
My running is faster and more fluid. I have been pleased.
I would focus on you walking around the house and at work, etc. Lift up your feet. He suggests in the book to imagine you have poles sticking out from your inner ankles that you have to step over. I would suggest doing that when walking.
Also try to practice using your abs to keep your posture correct. When I first started I was experiencing back pain due to using my back. Use your abs.
When I run I mainly focus on kicking my legs up in back and swinging my arms towards the rear. The visualization technique he suggests of focusing a few hundred feet ahead and imagining that you have a big rubber band hooked to your chest pulling you along really works well for me.
I have passed the book on to some some friends and some of them have had some problems doing the technique. So, for some it may take some time.