Absolutely, getting to know your local FAA reps FSDO and ATC is paramount. What I have experienced recently is that the ATC cannot give you directly the LOU anymore. The FAA regional office gets it for some reason. But if the ATC still has to sign off on it. So if they get to know you and understand that you are not a fly by night operation they will be more likely to support the LOU when the regional office comes to them. Even though the regional office does this I find that if the tower already has been informed in advance then they cansign off on it sooner, then if they get a notification that "Joe Blow" wants to fly his drone for hire in their airspace. I find that the more the FAA is informed on your operation the better it is in the long run.