Boarding School Abroad

I recently discovered the CATS College program, a set of boarding schools in Boston and throughout the UK. Specifically, I am interested in the Canterbury location’s IB program. Does anyone have experience with this school, or just being an international student at this type of school in general? Any insider info? I can’t seem to find lots of information on the school that is not part of the official website. I like the idea of going to a boarding school abroad. Does anyone have tips for a USA student considering this?

BTW I’m a sophomore (2017-18) who is looking into her junior year and I live in New England USA