I was in private school for the second half of my school career. I graduated from an all girls Catholic High School, and while I didn't really like it I am grateful that I was educated in such a close knit environment.
I find that private schools keep the communication lines open between faculty and parents for two reasons. 1.) There are less students they have to tend to and 2.) You pay their salaries
For me it depends on the school systems in your area. In my county they are slowly resolving major issues with underfunding, violence, and overcrowding, but let's just say it's not all the way there yet. However the county next to us has the best school system in the state. I would have definitely attended public school if we had lived there.