I would never use this company again. I once waited over an hour for ataxi and it never showed. I called back and they tried to tell me the driver came but I know he didn't come because I was outside waiting the whole time. The never offered to send another taxi. I called these people twice and would never call again. They have poor customer service skills.
I used this service twice and my experiences were both bad. The drivers seem to be extremely rude. One driver even smoked despite me asking him not to smoke while I was in the cab. I wouldn't use them again. Thankfully I have found a better service. Beware of yellow cab.