Paco,
I picked up a nice gift pack of 4 or 5 small bottles of rum from different countries (CR, Jamaica, Panama, Puerto Rico and maybe Nicaragua) at the airport when leaving San Jose. It even included a glass. Made a nice gift for my father-in-law in Colombia.
Now as to taste, I have to agree with CapoD2TCapo and Tman. Mixing any rum with anything else will change the intended flavor although I do like to mix in a little cranberry or pink lemonade just for fun. Diet cola would not be a first choice as a mixer.
On my first visit to the Dominican Republic I was accosted by guys in red blazers and ties offering me cups of two competing local rums (Brugal and Barcelo) . This was in the Santo Domingo airport both were served on the rocks.
I downed a couple cups before even getting through immigration. When I entered baggage claim there was a merengue band playing. I thought,
"Now this is the way to greet people to your country!"
By the time I hooked up with my driver I was already half loaded and ready to party.
I found this link on Caribbean Rums:
http://store.yahoo.com/randalls/spirits ... -gold.html