[folks here have been very helpful so I thought I’d return the favor]
D took the 5 week/9 session online course - 2 hour sessions w/a live instructor who takes questions via chat box. She raised her score from 1,030 to 1,210. +180points for $399. She didn’t miss a session and did about 80% of the homework but no other work to speak of. The Advantage class targets a particular sitting so you’ll have to check if it’s too late for the August exam.
Her sister had a 1,200 and said the material would have been too easy so 1,000 might be the swet spot. However, she just peeked over her shoulder for 20 minutes so it could have been the specific unit. It could also be a function of the students in a particular live session. Maybe D was just lucky to have other kids at her level so all the questions worked for her.
https://www.methodtestprep.com/sat-class-page
Naturally, YMMV. Good luck!