Vis. a vis Eretz Yisrael. Vishnitzer chasidim are not allowed outside the green line.
The main objective is Ahavas Yisrael.
Specifically וישמעו רחוקים ויבואו.
There is a special nusach of davening.
They concentrate on הכל יודוך etc.
There are 2 main groups. Monsey and Eretz Yisrael. Now Boro Park as well.
They wear the bow of the. kapelyush on the opposite side of most.
The Rebbe’s family name is Hager.
The Bronx was blessed to have Rav Mendel Chodorov who was a close relative of Vishnitz. He gave the Hashgacha on Goodmans Matzah.
Vishnitz Rabbis are now related to Satmar (Rav Aharon) and other groups as well.
Is this the type of info you seek?