I guess you can go through different posts where people have mentioned their favorite readers or success stories. I don't think anyone has been 100% for anyone. I was just going through my notes, and yes I believe they are real because some impressive stuff has happened, but that all has been so trivial in big picture or any picture that I don't know if it matters.
I had one time success with time with Annie Heaven, exact date, 15th June. Lotus of Light, Jade8928, LadyP were right about too about poi coming forth and timing, but he just wanted FWB and no relationship, so I am not sure what they read. It was disappointing overall is all I can say.
But yea every situation is different and you can go through some success stories and few other prediction related posts to get a better understanding and not waste your money on useless readers.