They have to pick it up from you also.
We rented from them on our last trip and it was not a problem. They actually gave us the name of the guy who would be dropping it off and a 1 hour window of time when he would bring it.
We arranged the pick up time when it was dropped off. We ended up with a quite early in the morning time and the
ECV was very promptly picked up within the time we were told. It was not a problem at all.