Well, Rachel's review is hilarious and that would merit one star from me as well, but just to add my recent experience: I called Taxi Champlain to get a pickup on a corner where I was stuck with a large amount of stuff I couldn't carry. The dispatcher told me he couldn't send a cab without an address then HUNG UP ON ME. So I called Diamond and the dispatcher was super nice and friendly, said no problem he'd send someone to the corner and when the car arrived it was in way better condition than cars I'd had recently from Champlain, the driver helped me load and unload all my stuff and he had a *gasp* professional gps and credit/debit machine. I'll be calling these guys first next time... though maaaybe not for an airport run. ;)