Hey I've never been a runner, but i was 7lbs overweight when I was diagnosed with PCOS so i wanted a training plan for follow as if i just went for a run id burn myself out within 5 minutes.

The first workout I was so hard, i could barely run those last few 1 minute runs even though i think you get a one and a half minute walk between them. Now i'm repeating week four which is 3 minute run, 2 walk; 5 run; 3 walk; 5 run; 3 walk; 3 run! i can't believe it, i'm running 5 minutes at a time! I wouldn't say the runs get easier or harder, I've found them to be consistent and move at a good pace, but its getting easier to push through. If I've found a run tough or not run for a week I tend to repeat a workout or two anyway.

I love this plan, tend to burn 200 calories a workout, do it around 3x a week usually at the gym.
Definitely recommend it, just when the time you have to run increases it can be scary but its just mind over matter.
Good Luck.

I've done C25k twice now and loved it both times. After the most recent time I've kept going and now am doing a 10k training program for a race in late August. Good luck!