Any NYS EMT-B class is intense. Yes, it may only be 6 hours a week on paper, but many of these classes also require clinical shadowing in emergency departments. You will also need to study outside of class. When I took my EMT-B class, I did a 12 hour/week class during the summer. I studied for 4-6 hours every week.
In my region of NY state, EMT-B's are paid about 12$/hour with prior experience. We also work 6, 9, or 11 hour shifts. Again, these shifts are on paper. If you take a call 30 minutes before an 11 hour shift ends, then you just earned a 12-13 hour shift.
The adrenaline rush keeps me in EMS. I have had some of the scariest, some of the most rewarding, and some of the most exciting times of my life in the back of an ambulance. By placing you in emergency situations, EMS will teach you to think critically and quickly. Also, you will start developing your bedside manner and may have the opportunity to meet some interesting people.
Please, if you pursue your certification, then use it to better the welfare of your community. Don't be one of those pre-meds that goes after it just to have the card in their wallet.