Dive Operators in the Dominican Republic?

[Ice9]

I'm headed to Puerto Plata in September, and I was doing some research on what operators are out there. So far, I've only found 2:

First Class Divers
Sea Pro Divers

Does anyone have any experience with these two, or maybe recommend someone else? Also, whats interesting to see on that side of the island?

 

[MikeM_scuba]

I've been to La Romano and was using hotel operator.