The only things I can think of I prefer on the Ocean Sentry are the avionics suite, and the eventual choice of units. Other than that, it has issues (in my biased opinion, of course). If I am fully loaded with fuel and (and some cargo) in the Herc on a standard day, I can lose an engine and still fly a long way...my 3 engine radius is pretty great, in fact. Not so in the HC-144. If they are fully loaded and lose an engine, they are limited in how far they can fly...not sure of the numbers, but I've heard they raised a few eyebrows to new pilots going into the aircraft.
That being said, it is a better SAR platform than the Falcon (though the Falcon has been the prettiest plane in the fleet since we got it).