I have used Ola for quite number of times and every time they have surpassed my expectation. They have put technology to a great use and has redefined the cab hailing routine completely. Of all the instances I have used Ola, my cabs were on-time or before time and were even provided free upgrades when Ola minis were not available.
I was extremely please when they introduced the Auto service. This is out of world. For a mere ten rupees service charge you find an auto to go on meter without any haggling and often courteous drivers, which I must say that are hard to find in Delhi.
They indeed are setting new standards in travel industry.