I am satisfied. The expert is interpretative. At first I thought he won’t do it. But managed. What I'm very happy because I don't like to change "the horses on the trail" )). There were also complicated moments in the project due to the fact that the TZ is unclearly described, and the customer always wants more. So the TZ should be clear. And if it is not, then first you need someone to help make it clear, then everything will be simplified and accelerated. I am very grateful that the freelancer took for the project with such a TZ as I had.
The project is not completed, I think there will be a few more stages to get the desired result.
The second phase was already created, as an addition to the current project, so that the customer received the desired result and this freelancer brought the initiated project to the end, but did not do for free what was not in the TZ at first. In general, the freelancer did more work than it was expected at first and we agreed to increase his remuneration.