<p>I agree with neo. Not sure what the expensive service is offering you - I would definitely ask for references of people who have used their services and their success rates. If anything they may know your chances better than we could if they are legit.</p>
<p>I think going through the online research and prep is just good development and makes you realize how tough it is. Makes you think about YOU and what you like and don’t like.
Definitely find people who can read and criticize your essays though - I recall my D doing tons of revisions with each piece of new info she read and thought about it - digested - etc. Listen to neo -Start early!</p>