s Burgandy Farms a good school for students on the spectrum?
Well, it would depend on where an individual child was on the spectrum and what strengths and challenges that brings. Most privates, Burgundy included do not have teacher training and resources in place to support AS kids. Small k -8 schools tend to teach to the middle with very little real differentiation. So neurotypical kids who are bright do well in these schools ... Ask yourself if your child is close enough to the middle ... If so s/he will do well. If on either extreme either academically or socially, I would look elsewhere.
I'm fairly certain the bolded is only your personal opinion. I'm also going to guess that you are not an educator, because the ignorance behind that statement is surprising and sounds like a poster whose only credentials in commenting on education is that s/he once attended school.