Yes, they most certainly are!! However, Dominicans are so called 'wet cigars' so don't buy 'm if they haven't been properly kept in a humidor.
Continuing to supply the US market was (among other considerations, I'm sure...), when Fidel took over, the foremost reason why many native Cuban cigar people went to the Dominican Republic to keep on doing what they had been doing all of their lives: making great smokes out of purely natural materials. The conditions in the Dominican Republic actually are a bit better for growing the different kinds of tobacco to produce the raw material for cigars, not to mention the obvious ease of getting to the right agricultural supplies in the amounts that are needed.
Though the Dominicans seem to have concentrated on making milder cigars that would appeal to a larger public (so sizes are at the very least comparable and in any case more constant), the matter of taste stays a personal one. If I may offer a suggestion: try a few of a size that you like and go from there. And if you are in need of personal advice, ask your retailer. They've smoked them all, believe me
I'm into cigars, can you tell?
D-R
(Hmmm, all of this wetted the appetite...I think I'm going to fire up the laptop and take it to the bibliotheque

)