Hi Russ. I chip a lot, and it saves a lot of shots in scrambling. But never use it unless 75% of the shot will be roll, or the ball will land in the rough/semi and you will end up taking 2-3 attempts. Also not a good idea to use less than 75% shot or it duffs it - use a shorter club.
Also worth experimenting with distances and spin. I never use spin on a chip, but have worked out how many extra yards roll equates to 1 foot down elevation etc. You'll gete the hang of it quickly!