I know a dozen people that have had it in the last month, including my whole family, and everyone's symptoms were mild, less than the flu. Not trying to discredit, just wanted to share other points of view.
It seems to manifest in all kinds of ways. I got it a month ago (double boosted) and it was the worst illness I'd had since a big flu bout ca. 1990. Not fun. My symptoms were clinically mild, but were total ass-kickers.
That's what I was expecting. Makes me think I might've caught one of the new variants. I'm quite fit and healthy, so I don't think it's a matter of weak immune system.