I think if you're going to buy a subscription package, you're really going on blind faith so it's important to find someone who speaks in your language i.e. you always know where's he's coming from and why he's on a specific team or total.
Also, although I'm too lazy to prove this, but all of the pros have good years and good seasons and see everything clearly. But they often struggle the next year. It doesn't mean they aren't trying just as hard, it's just no one hits 55% every year or in every sport.