This is a well-made comforter. The only problem is that there's less down than there really should be in each of the squares. Overall its loft is good. 3" or so, cotton fabric is fine.  So I think if you put it inside a duvet cover, it should be warm enough for a northeast winter. It actually compares surprisingly well to comforters we've gotten from ll bean and the company store, at three times the price. Maybe not quite as good, but not that much different either.

Pros: low cost, high value
Cons: could use some more fill