Those who've been to the Dominican Republic

I will be going there on the 6th of jan and staying in Punta cana. Soo, my questions to anyone that has been there:

1. Where can you get some good sticks CC and NC that are reasonably priced?

2. Anything or any place that would be somewhere to visit or check out?

3. Any places or areas that I should stay away from?

4. Any other suggestions about anything for my trip there?