I just finished CERT training for work and I loved it. They also do short refresher classes each month for us on a single topic so we can remember what we learned in class. I work at a university so we also had a class devoted to work place violence and shooters on campus. I found it all very interesting and it has helped me make adjustments in my work kit and car kit. In my opinion CERT training is a good jump start, but you'll need to be proactive in getting more training (especially first aid and CPR) afterwards.