I've had kids in both, and would go back to the private school in a heartbeat if we could manage the cost. When we were able to do it, I hauled my kids 40 miles to work with me, sent them on a bus for 30 miles, and then reversed it all at night. It was worth it.
I am not terribly unhappy with the public school my youngest now attends. The teachers are not lax, she is learning well and pulled straight "A"s this 9 weeks, and they are "allowed" to have Christian music at the "winter" concert. Still, we are considering moving her to an online school next year and keeping her home. She has been bullied, gotten into a fight herself, and witnessed a couple of 4 on 1 fights in the last few months. This school does far better than the one in Nebraska that my older kids attended...but I'm not sure they can do enough.