We saw it and thought it was well done. It used the lingo and gave nods to little things like Patrick Carnes Gentle Guide to the 12 Steps was in the one characters hands at one point.
Kudos to the filmmakers for treating the subject with respect and not the usual Hollywood belittling and comedic way. I didn't like Paltrow's character but I liked the scene when Tim Robbin's wife's character was explaining things to her like CoD and her own baggage. I thought that was interesting.
I wasn't triggered by it. But I rarely am triggered by movies. It would be very triggering for some.