NAM was showing basically nothing 24 hours ago, right? Also, from what I've heard it tends to have a north bias.
I think it's an improvement and definitely better than where we thought it be going a couple of days ago.
2-4" with some sleet and ZR will stick around a while with the advertised temperatures. I got 4" with the second Jan 2022 storm, including an inch of sleet, and it stuck around for two weeks with warmer temperatures than what we are seeing on models.