I hired Dennis some months ago and working with him was a great experience.
He works very fast and very clean. He also document the scripts he write which is excellent to learn from...which I did ALOT.
He wrote for me alot of stuff, but the main part was the weapon system for my Game, which also saved my project.

And also a very positive aspect of him is, he will rework the script as long as you are satisfied with it.

I can highly recommend Dennis, you cant be wrong with me, he is my #1 scripter!!