Really good watch, would watch again, and can recommend.
If you are in a position to do so, then you could actually watch this movie before the "Fear Street Part One 1994".
I think a large part of this is that Sadie Sink is an amazing actress and while she doesn't carry the movie, she outshines everyone else with whom she shares a screen.
This isn't even an origin story, but sort of meets all the pacing of one in a pretty excellent fashion. Introducing Ziggy and the curse of the Sarah Fear all in one horrific go.
They do go a weirdly tasteful route where they previous showed high schoolers being killed, but do not show younger children being killed. I honestly didn't expect it given the amount of blood and wounds are shown, but not really gore come to think of it, at least not in this one.
Even as a stand alone movie, if you're into camp movies and like slashers, this is well worth the watch.