I was a center manager for Kaplan in the Chicago area. My wife also worked for Kaplan.
I have basically nothing good to say about them. Test prep organizations are run on a shoe string. Lots of time spent getting people in the front door, very little spent training or investing in instructors. I think it would be unfair to label all of the instructors as bad, because I worked with some brilliant people. But it is damn hard to keep instructors in the classroom given the peanuts you pay them. It leads to putting some very sketchy people in charge of classrooms.
I am rather proud of the fact that I got fired from that ***** hole.
I would recommend your daughter buy a book (Kaplans books were actually quite good), and get the previous years tests, as they are released. Some quiz software that simulates the test is nice as well, because then she gets familar with the test environment, and she can also use it in 'flash card' mode. If she wants more human interaction, perhaps she can find an LSAT study group at her school?
EDIT: Oh yes, and for the record, I got a 790 out of 800 on my GRE logic section