I have used it for arrival and departure and will be doing it in another few weeks. Our arrival last March was wellllll worth it. The line up for immigration went up the ramp and around the corner. About an 1.5 hour wait. We walked right by them all to the immigration officer dedicated to the VIP service. We were at the baggage carousel before our luggage. Breezed through customs. Went to the lounge. had a cold towel to freshen with, couple of cold beers, a nice bathroom to clean up in and then our taxi was at the curb ready for us. Well worth the dollars to not have to wait in that longggggggg line.
Departure was nice once you checked your luggage. In Dec there was a ling line for customs but we were fast tracked through that and in the lounge in no time. Definitely worth it for us