Accurate and so helpful!
I have been using this app for my daily commute on crosstown buses and its predictions are good. Note that you should always leave extra time for traffic if using during rush hours, since the app cant predict heavy traffic or lots of passengers holding a bus up. Regardless, the GPS map is very helpful in tracking bus movements in real time. Bottom line: use some common sense and this app will serve you just fine.
HoneyPot about
Catch The Bus: Bus Tracker, v2.2.1