We Chassidim believe that during the Mitzvah Tantz, the Shaarei Rachamim are open and one can daven for whatever they need. I recently heard ,that there are litvisher Rosh Yehsivos
who will refuse to be Misader Kedushin at a wedding if there will be a Mitzvah Tantz.
With all do respect, can someone please explain to me what Litvaks, Yekkes and Chabad have against MT?