I am using ola cabs since they are launched & for me it worked like really good. they have different option of cars for every need whether you need a hatchback , sedan or even premium one
& the best is now they have started this sharing option which works really well
going from rohini to saket cost me 120 only. where as auto is asking for 250
& the taxi is costing me around 300
& you can get the cab anywhere
you dont need to go to any stand it comes to your location whereever you are. & its quite safe also you can easily share your details with your near one by just click & even have a option of direct calling to police
I am quite impressed with their service!