Hi amindu,
You can see my thoughts about Sleep Science in general in post #8 here and in post #2 here. I would be aware that their foams are not CertiPur certified which for me would exclude a mattress with foams that are made in China. There are also a few comments about the Escape in post #2 here.
I would want to know the density of the polyfoam layers (with the exception of the inch of quilting foam) but I believe they are in the 1.8 lb range or higher which would be good quality. Assuming they are good quality and the memory foam densities are correct and are “unfilled densities” there are no obvious weak links in the mattress and the edge support system is a good design IMO for those where this is important. The polyfoam in the quilting will also change the “feel” of the memory foam underneath it compared to mattresses where you are sleeping directly on the memory foam. I would also want to know how long the mattress has been compressed (see post #6 here)
If you’ve read the tutorial post then you’ve probably seen this but just in case … post #12 here has a list of some of the better online memory foam manufacturers and retailers that I’m aware of.
Phoenix