Since 1975, Art Scroll Publishing, and its non-profit arm The Mesorah Foundation, have produced Hebrew-English annotated translations of Tanach, the Mishna, the Babylonian Talmud, the Kitzur Shulchan Aruch. siddurim, machzorim, biographies and several tractates of the Jerusalem Talmud. These books have opened tremendous opportunities for Jews not raised in a yeshiva environment to learn Talmud and halacha at a much higher level than ever before, and has been termed by some as "The Art Scroll Revolution." See, e.g. Jeremy Stolow, Orthodox by Design: Judaism, Print Politics, and the ArtScroll Revolution (2010).
Has anyone ever quantified, in any terms, the effect on the baalei t'shuva movement that Art Scroll has had?