Excellent.

It was accurate most of the time on what train car to board. The only thing it was missing is the timetables but its coming soon.

Update to this review: I have bought this app with intentions that timetables will come along but its been almost over a year now and they still havent bothered updating it with timetables. They should stop advertising this future feature unless they actually release it.

YvonneWu about Exit Strategy NYC Subway Map, v2.1