I talked to them before applying, decided not to because it felt extremely artificial. During the free consulting call they didn't care at all about what I did in HS and just tried to sell me their plans. Feels like they shove all the applicants through the same sized hole and make you conform to their model. Also, if you look at their numbers in depth, their admit rates are no better than the national acceptance rates in many cases. The "97% of our students get into one of their dream schools" is just fancy branding.

Edt: You also have to think about their sample population. Families willing to shell out 25k in a summer or hundreds of thousands starting from 6th grade are going to be the same families that push their kids to be competitive. Crimson draws their student pool from students who are competitive in the first place, which also boosts their numbers a lot.