Global Entry is certainly not necessary or right for everyone. I see it having limited value for all but the most frequent Dominican flyers coming into the US.
But for those who do fly frequently, or fairly frequently into the US from outside the country or even domestically it can be well worth the $100.00 fee for five years.
By way of example, when my STI/BOS flight arrived at almost the same time as the flight from SDQ, the flight from Montego Bay and the flight from Dubai and you are staring at 300-400 people in the immigration lines, and even with the separate lines for returning US citizens, you will be smiling with Global Entry.
Also, and not often mentioned, Global Entry also gets you TSA pre-check for those traveling within the US. Expedited lanes through security into the gate areas and no more taking off your belt and shoes or opening up and powering on electronics.
As a fairly frequent USA flyer TSA pre-check was well worth the $80.00 fee and upgrading and getting Global Entry for an extra $20.00 to get both for 5 years is, in my opinion, a no-brainer.
Respectfully,
Playacaribe2