Almost great
I have an iPhone 5s and this app works decent on it.
I love the gps tracking, the coach, and the schedule. However there is a major flaw.
I am a Spotify user, and the app wont play the next song after the first initial song. This takes me out of rhythm and I have to open the Spotify app and play from there. When you play music from the Spotify app, however, the coaches voice disappears. Hopefully this issue can be resolved soon, and I will give a 5 star review of this app.
Josho231 about
Nike Run Club: Running Coach, v5.2.0