Magnus Chess Academy vs Personal Online Coach

My 10-year-old son is enrolled in Magnus Chess Academy. The format is a one-hour weekly class that includes around 5 students. and different topics are covered (e.g, openings, tactics, checkmates, etc.). It comes with lots of extracurricular activities including mid-week mini-tournaments, webcasts with their coaches, etc. However, they do not really have the ability to focus on any particular student, though the coaches do get to know their students somewhat.

However, I have found an online personal coach who comes highly recommended by some people I know. I am wondering how having an online personal coach compares to being enrolled in an online chess school like Magnus Chess Academy. We cannot afford both. Thanks.