Advice on a particular speed controller.

Hey guys,

I am thinking of buying the following speed controller,

http://www.art-tech.com/english/ArticleShow.asp?ArticleID=81

I don't know much about speed controllers and i have not used them with arduino before, so before buying it does anyone see any problems with it that will cause it to not work? From what i gather from the forums, i'll use the servo library to control it.