very different vibes.
also likely different commute times.
Personally, I wouldn't love the grading style of HM. I don't think it would be good for my kids either.
But, I know they cater better for certain interests.
Also, worth considering if your kid can rise to handle the academics. Sometimes, being a big fish in a smaller pond is better.
Feel free to drop a dummy email if you would like to discuss more at length- just my two sense as a mom to three NYC private school kids