The challenge and also the preparation for the oral exam helped me a lot to get a structure into all the learning material in the first place. In addition to the content of this training, I also worked on some other tasks (e.g. old exams) and thus passed with a 2 after an above-average short training period. I would not have succeeded without the structuring and restriction to the essentials in learning. Therefore, my recommendation to invest money in training here, even if it seems a lot at first. It is worth it if you stick to the plan and keep at it regularly. You have to spend much less time with the Gripscoach program than if you want to work out all the content yourself and, in combination with old exams, you still have everything you need for the AP2!
It is great that you are not tied to a specific time and can work on everything from home. Live courses are recorded, so you can work on them later if it doesn't fit (I usually had to work around that time). The entire challenge can be worked on at any time anyway.
In the preparation for the oral exam, the report variant is dealt with in particular and a lot of help is given there. So if you want to write reports, you can get a really good grade in the oral exam with the help of Gripscoach! There are also many tips and learning videos for all WQs for the classic variant, which are worth their weight in gold, especially for shorteners or externs who have no preparation for it in school!