Hi oneunderone,
This is certainly correct and both mattresses use good quality materials and there are no lower quality materials or “weak links” in either of them.
The support layer is 2 lb polyfoam in both of them and the main difference is that the Love Bed uses 3" of blended Talalay latex in the top layer and the #BestMattressEver uses 2" of blended Talalay latex and 2" of synthetic continuous pour Dunlop. All of the latex in both of them are Oeko-Tex certified (Oeki-Tex is a certification that tests for harmful substances and VOC’s not a specific material) and the polyfoam is US made and is CertiPur certified (see post #2 here for more about the different certifications).
Different mattress designs and layering and different firmness levels can certainly make a significant difference in whether a particular mattress is a good match for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) and how well you will sleep on it. There are many different body types and sleeping positions and individual preferences which is why some mattresses are suitable for some people and not suitable for others.
There is also more information in post #2 here about the different ways to choose a mattress (either locally or online) that is the best “match” for you in terms of PPP that can help you assess and minimize the risks of making a choice that doesn’t turn out as well as you hoped for that are involved in each of them.
It would be very unusual if someone couldn’t tell the difference between soft, medium, and firm but I would use the testing guidelines in the tutorial post to test any mattress and I would spend a minimum of 15 minutes on any local mattress you are considering.
There is also more about the most important parts of the “value” of a mattress purchase in post #13 here that can help you make more meaningful quality/value comparisons between mattresses.
When you are down to finalists that are all choices between “good and good” (which you are) and none of them have any weak links or lower quality materials in their design (which they don’t) and if there are no clear winners between them then you are in the fortunate position that either of them would likely be a suitable choice and post #2 here can help you make a final choice based on your local testing or mattresses you have slept well on, your more detailed conversations with each of them, your confidence about the suitability of each one, their prices, the options you have after a purchase to change the firmness or exchange or return the mattress, any additional extras that are part of each purchase, and on “informed best judgement” based on all the other objective, subjective, and intangible parts of your personal value equation that are most important to you.
You are certainly looking at some very good quality/value options
Phoenix