Tobago Trinidad Citizen Becoming
You cease to be defined as a "Foreigner" And some employers have a policy of hiring locals over foreigners so it obviously enhances your employment opportunities. Secondly, as per the previous post, you can access Government loans as a citizen only and not as a foreigner.
In Trinidad, preference is given to locals, then CARICOM nationals if they have a Skills Certificate and then nationals of the British Commonwealth and native speakers of English. Other foreigners come due to the presence of foreign owned businesses.
As a non-Commonwealth national, it would therefore definitely be in your favour if you plan to stay here indefinitely.