I completed my first 10K training run last Friday in a time of 1:01:48 hr, as timed by the Nike+ Run Club app. I started running 12 weeks ago, and have since achieved a 1K best of 5:06 mins, and 5K best of 29:59 mins. The next goal is to complete the 10K run in under 55 mins.
I like the Nike+ Run Club app. It has quite a few issues, and updates have occasionally introduced new problems. Nonetheless, the developers are responsive in resolving the issues. The app does what I need it to do, and it does them well. I particularly like the coach feature, which tailors a training plan based on your goal and ability.