Hi martoq,
Thanks for posting the specs they gave you.
They are the same as the specs they gave another member of the forum (see post #9 here) except they told you the density of the base foam is 2.0 lb density and they told them it was 1.8 lb density so I don’t know which of them is correct (although it’s also possible that they changed it since the other member’s post as well). Either way it wouldn’t make a meaningful difference in your BMI range.
There are no lower quality materials or weak links that would compromise the durability or useful life of the mattress or that would be a reason for concern for those that have a BMI under 30 although I would add a slight caution if your BMI is about 30 or higher (which you aren’t so it wouldn’t be relevant to you).
I don’t know who makes it but any type or blend of latex (either Dunlop or Talalay and made with either natural or synthetic rubber or a blend of both) would be a good quality and durable material relative to other types of foam materials and any type or blend of latex wouldn’t be a weak link in a mattress. There is more about the different types and blends of latex in post #6 here.
It would be a version of blended Dunlop latex and it’s possible that it’s continuous pour Dunlop made by Latexco because I know they make a 20/80 blend but I don’t know this for sure.
Of course like any online purchase that you haven’t tried in person the only way to know whether one of the Luxisleep configurations will be a good “match” for you in terms of comfort, firmness, and PPP will be based on your own personal experience.
You are certainly making a good quality/value choice … and congratulations on your new mattress 
I’m looking forward to your comments and feedback once you’ve received it and have had the chance to try it out.
Phoenix