Johns Hopkins Center for Talented Youth (online)

Hello, I have a question regarding the CTY online classes. Has anyone ever taken any classes there before? What was your experience? And how good are they with financial aid? Also, I will be applying for individually paced courses this summer and I don’t know what my chances are of getting in. Any help? I have PSAT scores of 580 and 640 on English and math, respectively (10th grader). Any advice/help is appreciated.