I love McMillan running and have followed his six-step training system for years. Ive been a runner my whole life (Im 33) and read tons of Runners World articles and running advice, and his is the most comprehensive and scientific program that works for any level of runner. To get the most out of this app, read the free article on the website under training advice - its the whole reason I use it. Being able to control your pace and training at different paces is the single most important skill a runner can have!
Sherylc6 about McRun