It seems like there are so many systems for any given problem. They all claim to deliver rainbows and unicorns (or sports cars on the beach if you prefer). Is there a way to determine which system is the right one for you?
Everyone is looking for the shortest path from where they are to where they want to be. A proven method for success is to model those who have already achieved the very thing you would like to achieve. After all, they know the way, they know the pitfalls, and they know the sweet, sweet taste of success.