Language school recommendation for BJT goal

Hello, has anyone here gone to a language school with taking the BJT as a goal and would be willing to share their experiences/recommendations? I'm planning to take JLPT N3 in my home country in 2027 and move to Japan for language school (12-18 months) in 2028/2029, depending on savings. My goal is to score as high as possible on the BJT by the end of school, ideally hitting J1 territory. I've been looking at the Nisshinkyo recommendations + websites and so far, my shortlist consists of: * Communica in Kobe (due to them starting business classes from N3 already) * KJLS in Kyoto (seem to have small classes and balanced student demographics) * KAI in Tokyo (I've heard good things about their kanji teaching methods for western students) Would appreciate any thoughts on either those schools or others that I should check out (or general advise)