I spoke to her too, and you're right on the accent. But she could always be second generation. As for her being dark, there are a lot more dark Cubans than dark PRs. The Cubans are often darker than the Dominicans. For $50, it's a can't lose, I just haven't been able to find the time to go yet. Perhaps I'll go next week if she's still around.
By the way, I've seen a couple "reviews" of her on CL too, but I'm pretty sure that the guy who advertises her is also posting the reviews.