Well my last experience with ola cabs service was not good at all. I have been facing this issue of location on this service, although I use wifi or 4G network with updated version of the app. Last time when I booked the cab it located me wronly and the driver went to some other place, when I called him he was waiting somewhere else. In this provess of struggle I got really late and had to book another ola cab, and same happened with anothe one and I had to make the driver understand my address. The operators should fix up the issue otherwise people will start switching to other cab services soon. In short when in hury do not trust ola completely and be ready with the backup plan.
