I am a technical writer and I audit documentation for small developer tool companies. You get a written report: what a new user cannot find, what is out of date, and the ten pages to write first.
Past audits include Logpond and Schemadiff, and both founders are on this forum if you want to ask them.
did ours in march. she found that our quickstart assumed a config file we never told anyone to create. signups completing setup went from 52% to 68% after we fixed the ten pages. worth it
Did mine in August. The report was eleven pages and one of them was titled "You have three commands and document nine".
Yes, too early, and I would rather tell you that than take the money. Come back when ten strangers have tried to set it up.