OP you have gotten some good feedback here. And you are extremely extremely fortunate that you did apply – and get admitted to – a school with such generous aid.
We also find that even “100% demonstrated need met” schools vary widely. Some take into consideration younger siblings’ private school tuition, making for a more generous package. Others include home equity, which makes for a less generous package. In many cases they are unaffordable, in fact, I would say more often than not…and the ones we CAN afford are unlikely admits in other words we could afford them IF our kids could actually get in…
As others have stated, tailoring the search to your family’s particular situation is so so important.
And congrats on your acceptances. the good thing is, you only need to have ONE generous school, because you will attend ONE.