They do not ask very in depth your goals and your expectations. They write a super fast "default" CV, Linkedin or cover letter, basically something that whoever could do by himself for free.
Basically you become one of the million people with the same default CV, with no distinction point.
Moreover, the service is incredibly overpriced. Based on my experience I would have paid (for CV, Cletter, Linkedin) maximum 50, while it costed 200.
I asked for a refund, it was impossible. They just proposed another writer, but nothing changed.
Completely useless.