While it may be a good course I had my wife check it out (She's a certified CPR and Infant CPR Instructor) and you might want to be careful if you render aid!!! Some states don't consider the CPR portion to standards and you might be held liable if something happens. Most folks who take a free course are issued a card that is good for 1 year, and then needs to be re-certified.
Check to see if legal in your home state. Don't want to see anyone get sued.