I am regular costumer of uber cabs and I will tell you . It is a best and fast app to book a cab.
All u need the app in your phone.
It provide many ways of payment like cash , paytam, cards etc.
It has many option to have cabs like uber go , uber pull and uber bike.
All you need do is just put your location and destination. It will show u the rate of fare and near by cabs.
When you click for cabs order , it will send you the cab number and contect number of driver.
You can call the driver to ask his location and ask the time required to reach to you to pick you up.