Everyone I know that has gotten the flu recently (5+ ppl) got the flu shot, I do not think they got the shot quite right this year IMO..
The severity of the flu is lessened with the flu shot. So yes you could still get it, it's not perfect, but you're not going to nearly as miserable sick than if you skipped it.
My father and DH's grandmother both tested positive for the flu despite getting the shot. They were over it within two days.
I was too lazy to go get it. Got the flu. Was sick for over a week. Like, if I was vertical it was because I was switching my location from the bed to the couch or back again, sick.