Hi Triniti,
The choice between latex and memory foam would be a personal preference and if you are considering latex it would make sense to test some latex or latex hybrid mattresses to find out which material you would prefer to sleep on. Post #2 here has more about comparing latex to memory foam but your own personal testing and experience is the most reliable way to know which one you would prefer.
I’m not sure why you would be concerned about blended Talalay latex when it’s one of the highest quality and most durable foam materials available (and in softer ILD’s would be a little more durable than 100% natural). There is more about the different types of latex in post #6 here.
Mattress reviews can be among the worst ways to assess the quality or value of a mattress (see post #13 here) and I would be very cautious about how much you rely on them. You can see my comments about the change (which was long ago) and the particular review you are probably referring to in post #2 here and the posts it links to.
There is more about “matching” one mattress to another in post #9 here but latex is very different from memory foam so if the Cloud Luxe is your “target” then a memory foam mattress that is designed to approximate it would be much closer to the “feel” and performance of the Cloud Luxe than than a latex or latex hybrid mattress although either one would make a high quality and good value choice if it was a good match for you in terms of PPP.
Phoenix