Awful. Couldn't get through it. (I'm giving it one star because Google requires at least one but it deserves none.)
The book, The Radium Girls by Kate Moore and published in 2017, is outstanding. A page-turner. I found myself, more than once as I read it a couple years ago, saying out loud, "Oh, my God" or "how awful." I highly recommend it. This movie doesn't come close to the riveting story of those "shining girls." Read the book: it'll stay with you for a long time.