PS 6 is always one of the top ranked public schools in District 2. If you don't live in the zone, try to get a variance but usually, your child has to pass evaluation first and spots are very limited. Strong sibling policy so if you can get one child in, the other child is automatically in.
Well financed PTA helps pay for many extras.
Pay attention to make sure your child is keeping up with the work. Many dedicated teachers but not every one.