Sorry to hear about your frustration. This situation is always awkward because I’ve never been able to reproduce the show-stopping issues people seem to have with the Sculpt Tools UI. And while in hindsight I probably wouldn’t have used the addon so heavily in the course due to stagnant development and age, I still am able to work with the addon – it’s never been show-stopping-level obsolete in my experience.
But again, there are several options out there with similar or better sculpt tools.