How deep is your connection to that star professor though?
I tend to believe I visited a good university, and we also have some leading researchers. The problem is that you wouldn't know beforehand if they are even giving the lectures you're interested in. The other people in the department can still be bad at their job. Being a researcher doesn't transmit to being a good teacher. Or not a complete idiot.
Sorry if this sounds harsh, also I'm not trying to deliberately shit on my uni education, but let's just say I didn't find it great for many reasons. One course by a "leading expert" could have been pretty great, just that it was done in not so stellar English (the prof was German, so am I) and so it wasn't so great to understand.
If you just show up to learn and don't plan to stay in academia there (do a PhD, get to know the faculty) I really don't see a point.