I have a paid subscription to TP and have for many years, it is not expensive on a monthly basis. But I do compete. However, I think if you just want to improve fitness TP might be overkill, the built in training on the S5 can do that for you. Let’s say you don’t want to compete but want to set a PR. TP allows you to set up a plan or buy one and follow it. A great site for tracking and planning training for a goal but not the best site IMHO if you are looking to generally improve your fitness. I have been using TP for nearly two decades, I can certainly answer questions about it.