On my 3rd attempt in about 3 years, I completed C25K in August 2014. This was partially due to the inspiring posts I read on this forum. I followed the program to the letter, no skipped sessions, no jumping ahead. I even did the last few runs on my holiday. I continued running 3 times per week until 12 Nov. My fitness imrpoved dramatically (helped by 2-3 swims per week and a healthy attitude to food), I even got a PB of 27:02 (ParkRun during a business trip in Europe - yes, I really was committed) and I fitted back into clothes not worn for several years.
Then (oops) nothing. No good reasons, just cold, dark, busy, lazy.
So, today's run - took a lot to get me out of the door, felt more difficult, managed the 5K in 30:17 (which included 'sprinting' the last 100m).
Motivation is required to continue this 3x per week. I shall resume reading this forum so your stories inspire me to keep going. And perhaps my post will help new starters that the progam does work