I've used the Airport Valet for the past three years. I am constantly on the verge of changing, but have been to busy to research the alternatives. I find their service hit and miss. At least 25% of the time they are not there on time, having the valet actually help with my bags is an ongoing issue. Because of how my expense reporting works, I have to use a ticket instead of a tolltag, I've pretty much given up on that fight. The few times I have called with an issue, the issue was never noted, I had to follow up with several calls.