Hi ryanc,
Yes the foam has changed because the original foam was no longer available to them and because they now need to compress the mattress for longer periods of time as Amazon takes over their fulfillment.
It is a lower density foam which by itself would translate into lower durability but the support layers of a mattress are not usually the weak link of a mattress and the comfort layers are the same which is the most important part of durability. The “feel” and performance is also the same. In other words in practical terms and for most people it would make little difference in terms of durability. You can see more of my thoughts about the change in post #14 here.
I don’t recommend specific mattresses for people but in terms of quality and value yes, the Brooklyn bedding and Dreamfoam mattress lines continue to be among the best quality/value in the country. For someone who was heavier and where there was more risk of “going through” the top layer and more deeply into the layers below then it may be worth considering one of their Brooklyn Bedding models which use higher density foam in the base layers and have exchangeable layers (to adjust your comfort choice after a purchase) but of course these are also more costly so this would involve a tradeoff. For most people of average or lower weight it would make little practical difference.
Phoenix