Not a bad idea. It’s funny – a friend of mine who is indirectly involved with seminaries (she works in a high school) just mentioned Sharfman’s to me on Shabbos when she was discussing the seminaries her students go to.
I hadn’t heard anyone mention Sharfman’s in years and I had forgotten all about it. It sounds somewhat similar to some of the schools you mentiond. She told me which schools it is the most similar to, but I forgot what she said. Maybe Midreshet Tehilla.
Other than that, I don’t have much to tell you. There is a lot of hashkafa, I’m not exactly sure where it falls on the academic scale, but definitely not intense, probably somewhere in the middle. I have a vague memory that there may be different levels, but I’m not sure.
It sounds like the girls are probably coming from similar backgrounds to you, but I can’t say for sure.