I did the two-day full level C St. John's CPR and AED course last weekend. I had done CPR a number of times in the past as a lifeguard, but I was surprised how much had changed. It was very worthwhile. Not just for my daycare families, but just as a citizen. I had no idea how easy it is to use the defibrillation machines, and if I came upon an unresponsive person in the mall or arena, I would be very comfortable taking charge and using it. It cost me $150 (and another $150 for my daughter, who will be working with me in the daycare) but I felt it was worth it... even if I hope I never have to use what I've learned.