Hello Zino,
The ESF-BAMF Program wants to support refugees in order to facilitate their integration into the labour market.
Communicating at work differs from communication in everyday life like you learned it in previous courses.
Of how much help this program is for you depends on your personal situation and your visions about your future job.
If you are searching for a job with a lot of client contact it would certainly be useful.
If you are searching for a highly specialized job, I doubt that they will teach you the particular language in this course.
Do you have a good perspective to get the job you want without further improving your German language skills?
With around 700 hours of training, this is a lot of time to invest. But it seems to be for free.
How do you see your chances with or without this course on the labour market for the job you want?
Please see for further info:
****://***.bamf.de/SharedDocs/Anlagen/DE/Publikationen/Flyer/Berufsbezsprachf-ESF-BAMF/berufsbezsprachf-esf-bamf.html