I have never been a fan of the service charge model because in my opinion the restaurant should compensate each job accordingly and chefs should make a higher hourly wage than a server, hostess, or dishwasher. Sadly some just pay the minimum wage across the board which is extremely low. The days of finding cheap meals in most of the main tourist areas of Negril seem to be behind us if you're talking about places that impose this service charge. By that I mean they're charging high profit margins and the additional service charge allows them to compensate their employees a little more while offsetting their labor cost from the wallets of their customers. That being said, it is what it is. I normally tip 20-25% and I usually still do at places with the imposed service charge. I believe in taking care of the people who take care of me. However I personally tend to choose places that don't impose the additional fee and don't generally go back to places that do unless I really like the food or a group I'm with wants to go.