Salamun alaikum Orange ,
I would like to share my experience with Tableegh Jamaat
As far as i know , Tableegh Jamaat is a big organization in India and it is spread up to the ground level everywhere , their main aim is to teach Muslims (especially Muslim youths) about Islam .
But their main book is not Quran , it is Fazail-e-amaal. (although they will say Quran is main book of Islam , but i have never seen them advising someone to read Quran's translation) , and whenever i meet them they ask
'' are you all doing zhikr of Fazail-e-amaal in your rooms ?''Three times i have been to 'Jamaat'(Living inside the mosque for 1 to2 days) . I have
never seen them teaching Quran during my experience. All they do is that after every Salah they start teaching Fazail-e-alam (which contains many
selected Hadiths from Bukhari , muslim , etc and other stories)
I have questioned a person
(not their scholar) from their mosque and his reply was '' We do not have enough mental strength to understand exact meaning and interpretation of the Quran''.
The activities of members of TJ is within Muslims ,
they do not preach the message of Islam to non-Muslims.Fazail-e-amaal is criticized by Ahl-e-hadith (Saudi type) sect too because of its contents (stories not present in Sahih or Daeef hadiths)
http://www.youtube.com/watch?v=WXYaN3VOw_c (please watch this video if you can understand Urdu)
Peace on you.