Where to learn business German in Munich

Has anyone taken high-level business German courses that they would recommend?

My German is already pretty good, but I'm looking for a class which would allow me to get some practice speaking about business-related topics. I'd specifically like to focus on speaking, since this is in preparation for some job interviews. A little bit of writing and grammar wouldn't hurt, either.

Thanks for any recommendations you can provide.

And a follow-up question: does anyone have any experience (positive or otherwise) with DeutschAkademie?