Here's better location info as the previous given is more than a bit off. It is on the morass side, set back from the road behind what is now a "spa". At least it was a spa last summer. Used to be the Negril Clinic. It's across from Traveller's, not really very close to CI or Bar b Barn at all although it's a lot closer to them than it is to Treehouse or Rondel - lol.
I don't eat meat which is why I can only vouch for the saltfish & ackee. Very reasonable prices, plenty served to have leftovers.