If you claim so and you are vouching for him, It is good of you to do so as this would help him a lot. Could you do well to give us link to the site let us have a good look at his skill and possibly make some recommendation because the speed at which the website was designed is very fascinating  and it shows how good he is at his work. This could help do some marketing for him and boast his work capacity. This could also give members here ideas of what you offer if there is any need to patronize you.