The plans will be periodised, based on current available knowledge and are guaranteed to improve your climbing if you follow them.
The biggest problem with training plans is generally people are too ambitious and consequently they fail to meet the targets set. However, Ian’s training plans are based on an initial discussion with you about how much time you have available to train and your goals. You will then be given a month plan, which will provide a straightforward set of targets that you can attain at the wall or crag, at the times that you agree you can climb. This could be for a half hour break in your lunchtime or a three-hour session on a Sunday afternoon. Or a combination - it’s whatever suits you.