I almost signed up with these folks, but held off and soon found this site and got some comfort around the calendar and paths. In hindsight, I'm thinking a 3rd party site might complicate the process if the parent also decides to step up and take an active role. I'm glad I was able to avoid the cost but also glad that I did not begin to rely on that service or ever develop any contrary opinions. I know the process is long and takes effort, but many folks have helped lay out the basics and the next steps and have taken much of the mystery out of the process.
I am also a huge fan of tapping the expertise of coaches. Would not expect them to manage the process, but if you have a good coach, then you should be able to get good guidance on where you should be looking.