Schedules nearly unusable
Other commenters have rated the ticket functionality, which I have not yet used. Im frustrated enough by the schedules piece. It does not remember the line you used last. If you choose a different service day or direction, it doesnt update until you tap "redisplay time." That is not how you design an app. Then, to top it off, the app resets to the home screen every time you switch apps. So forget about coordinating your schedule with an email, bus schedule, Amtrak...
Final peeve: why is this app named "MBTA" if it has nothing to do with subway or bus?
The Partially Colorblind about
MBTA mTicket