I would have to agree. The truth is that in hindsight, although it may not seem like much at the time, the info available from NATS in their emails and website is actually more than enough to prepare you for every stage and I don't feel that this thread adds a lot to it.
What I have found this thread very helpful for though is helping me feel more prepared. Having read up extensively on this forum about both stages 1 and 2 I don't think I did any better at either stage than I would have had I only been given the info from NATS. But I did feel a lot calmer and more confident on the day of both stages having spoken on here with people who had been through the process ahead of me about their experiences. Perhaps that extra confidence offers a small advantage, but having recently sat stage 2 I must say that I doubt it. Once the tests start you just have to focus and get on with it and the every finds it pretty tough regardless of how much info they had before hand.