I have two. That being said, I own a digital marketing firm and operate in three states. Im all over the CT, RI, MA area, sometimes all three, daily. I also stay overnight in the Providence a good bit. I live in Westerly, on the CT border, so a good, valid SC in the areas I frequent the most, would be good for me. Onto why this SC is important to me, seeing I assume that's your real question.
Warwick is an area Im in at least 4 times a week, visiting clients, etc., and the closest SC is East Greenwich as you are aware. That being stated, East Greenwich STINKS. One, or two are always broken, the amenities while charging are trash, it gets filled up quickly, and is the slowest SC within at least 100 miles radius. The greater Warwick area is in desperate need of a new alternative, and this one is it. Being next to the airport? Added bonus.
Ill use it at least 3-5 times a week, and most likely stay near it when needed, instead of Prov. Its a major win for me, and my needs while away from home.