Not all that reliable.
Ive been using this app since the summer. It used to be reliable in letting me know when the bus will be at the closest stop to me up to an hour going forward. Now, Im lucky if it will tell me just minutes into the future. Not super helpful when my current mode of transportation is the bus. I need to know when the bus will be there so I can make sure I get to where Im going on time.
JenJen12381 about
myStop Mobile, v1.1