We used it last October (but from BWV, not SOG) and were easily able to get there for rope drop.
I don't remember if the times for the return. We were told to call about 2 hours before we wanted to be picked up for the return, but IIRC, you can also scheduled the return when you schedule the pick up.
FWIW, I was happy with the service and would do it again if we wanted to go to Universal - I saw WWOHP so probably not for a long time, lol.