Called them and reached a guy driving in his car. Didn't like giving my credit card number that way... but no biggie.
When the Hummer arrived - exactly on time at my hotel, I assumed it could seat 7- it couldn't. The guy immediately arranged for a larger upgraded Escalade which arrived 40-mins later. The nav system's DVD had been stolen apparently, so that didn't work. (Apparently that and Lambo registration paperwork are the most commonly stolen items)
Couldn't have been easier... left the vehicle in my hotel's valet parking and left them a message for pickup.
Had a great day...
Pros: Very good customer service... good vehicle
Cons: Nav system wasn't working
more