@Flick @djsumdog @adiz Can confirm.
I've had shingles. Due to having had actual chickenpox as a kid (not due to a vaccination).
Reminder: Variola major smallpox had a case fatality rate of 30%.
Yes, for any individual vaccine you have to do a cost-benefit analysis of the side effects (which they all have - I also, personally, had a bad reaction to my smallpox jab way back in the 1960s) versus the severity of the disease. But on the whole, vaccines are a bloody good thing.