Anybody have any experience or know anything about this group?

Their official name is "Opus Christi Salvatoris Mundi" (Latin for "The Work of Christ, Savior of the World"); however, their official name in English is "Missionary Servants of the Poor of the Third World", and in Spanish, "Misioneros Siervos de los Pobres del Tercer Mundo".

I read some literature about them that seemed impressive. Father Giovanni Salerno is evidently a humble and holy priest who has dedicated his life to helping the poor in the Andean Mountains in Peru. According to the account I read, he has worked miracles, including healings and multiplication of food, through the intercession of our Lady.

Official Website:
http://www.mstpm.com/en/1-1.htm

I have never heard of him but they look interesting. It is a bonus that they have an institute of contemplative women associated with them.

Hello, my name is Barbara,

I just noticed this thread (it came up in a google search) - God works in mysterious ways.
By happy circumstance, I am the UK Co-ordinator of the Missionary Servants of the Poor of the Third World.
If you would like some more information I am happy to send you our newsletter, or a book about the movement (free) written by Father Giovanni. Alternatively, I am happy to answer requests for information, and we also have a retreat from the 1st to the 3rd of April this year in Brentwood, (United Kingdom)

Yours in Christ,
Barbara Toolan

Hi Barbara, thanks for the information! Glad you found us!