I have been using it for my punts. Done so for 2 months. It's good but can be tempromental if you are out of a 3G and 4G area it won't wor. You also may lose signal, and may need to reset the app. Sometimes the app just crashes which is an issue if you are waiting for a text back.
Conclusion: it's ok but be cautious of it crashing, as you may think they girl hasn't replied.