Our experience was about 10 years ago so I'm not sure if they still do a CM preview night. When we went, the drunks were so bad that we left without seeing Illuminations, which was our main objective that night. It was insanely crowded and very difficult to navigate with a stroller. And it was just way more than we really cared for our kids to see and hear. Finally, when a guy tripped while goofing around with his buddies and poured a beer on my youngest, we were done. We swore to never go to F&W in the evening again, and we haven't. I'm still hopeful we can go midday on the first Saturday, get through what we want to and be out before too many people are completely wasted. If I were in your shoes, not knowing what ages your kids are, I'd see if the CM preview still exists and if so and it isn't a major hassle to switch, I'd probably do it.