Useless with inaccurate times

I rushed to a bus stop in order to make it to a bus "arriving in 1 minute." After 12 minutes at the stop and no bus (and multiple refreshes and even rebooting the app) - still waiting. In theory a great app with simple interface, but its absolutely useless if the bus arrival information is wildly inaccurate.

OttoTheOrangeOrange about SG Buses - Bus Arrival Times