I attended a couple of these in 2019, and they are fun. I don't recall them being anywhere near busy enough to require reserved space in the way that Candlelight does. The performers are amazingly talented but usually not household names---at least, not unless your household includes some theater fans---and this is not normally a busy time of year.
Of course, nothing this year is normal, so YMMV.
But, if you are in Epcot on a day this is happening, I recommend it. It's got an energy that is quite different from most other things in that venue.