I was told the following from someone there:
The sports there is very good. They have a special league with their own teams and they play 3 activities a day. As far as the learning goes, I was told it is very good. They have at least 4 rebeim in the mesivta program and they are very good. As far as where the boys come from, generally they are from Darchei Torah and Ner Yisroel.