It just doesn't work! Like many other reviews, I am disappointed that I can't give less than one star. When using Curb only to simplify payment, the transaction went through to my credit card but did not go through to the taxi company. They showed that they didn't receive the payment even though they could see that it went through to my card, and insisted that I still needed to pay them. I called the taxi company, Metro Cab in Boston, and they said this happens all the time and I needed to pay them and get the refund from Curb. I thought Curb would save time and money not cost more time and money. The taxi company told me I shouldn't use Curb and I suggested that they shouldn't advertise for it in their vehicles if they were going to force me to deal with a refund when it doesn't work. I will never use Curb again and would encourage all taxi companies to drop the system if they are going to dump the problem issues onto their customers.

Requested trip one day prior Requested trip one day prior. On the day of the trip, I was provided updates once driver was assigned and was given information on driver name, phone to contact, vehicle make and model and plate number. Driver contacted me by phone when he was a few minutes out to let me know when to expect him, he arrived right on time. It was a smooth trip to the airport and the driver was excellent navigating the congested traffic. Driver was professional and friendly.

App said, "Payment is Processing. Please Wait" cab driver demanded cash. NYC: After paying with cc the app was stuck on, "Payment is processing. Please wait." The cab driver said the app was not working, and I had to pay in cash. He said he could not give us a receipt. People were impatiently waiting to get in the cab, so we were rushed. Of course, after we paid in cash, I checked my cc, which was also charged.

Terrible Like others I liked the idea of supporting drivers so tried the app, but I tried it twice and there were no cabs available either time. Plus, the second time the app took about 20 minutes to tell me that, by which time I had decided to walk. The worst part is that they charged my credit card and I am trying to get them to refund me, so far without any luck. Good concept, absolutely terrible execution.

DISHONEST PEOPLE Long story short, my Fiance and I took a brief ride from Grand Central to Port Authority, not long after I realized that I did not have my phone on me. I was able to use the find my phone app and could see it was in the cab going around the city. I pinged my phone numerous times only for it to be manually turned off for 12 hours. I emailed the dispatcher with the information he needed and have NOT heard back and I also followed up before I posted this review. They have no intention in helping me recover my phone nor have the decency to respond back - avoid all yellow cabs at all costs. Just awful.