I mean, most of the translations are fine, but there are quite a few spelling errors. I'm not sure if you told them to only translate the main missions—since the rest hasn't been translated yet—but getting back to the point: the grammar is a bit poor, there are typos, and so on. It might not be a big deal to you, but I wanted you to know.
P.S. I need more content featuring Sidney and Valentina.
If, as you say, you pay him well, then the work is poor.
It also seems like he took some liberties with the dialogue, because I really don't think that's what was said in the original.