Hi gldman,
While I can’t speak to how any mattress will “feel” for someone else because this is too subjective and relative to different body types, sleeping positions, and individual preferences, sensitivities, and circumstances … outside of PPP the most important part of the value of a mattress purchase is durability which is all about how long you will sleep well on a mattress. This is the part of your research that you can’t “feel” and assessing the durability and useful life of a mattress depends on knowing the specifics of its construction and the type and quality of the materials inside it regardless of the name of the manufacturer on the label (or how a mattress feels in a showroom or when it is relatively new) so I always suggest making sure that you find out information listed here so you can compare the materials and components to the quality/durability guidelines here to make sure there are no lower quality materials or weak links in a mattress that would be a cause for concern relative to the durability and useful life of a mattress before making any purchase.
Having said that … the Platinum uses high quality materials and there are no lower quality materials or weak links in the mattress that would compromise durability.
Latex is a very durable material relative to other types of foam and isn’t likely to develop premature soft spots or “valleys” even in a one sided mattress … but even with latex a two sided mattress will be more durable than a similar mattress that uses the same comfort layers on one side only. There is more about the pros and cons of a two sided mattress in post #3 here.
You can also see some general comments about Gold Bond in post #4 here.
They don’t mention whether they are using Vytex latex in the description you linked or provide specific information about the type and blend of the latex so you would need to call them and find out for certain but either way if you are confident that it’s a good match for you in terms of PPP and it compares well to your other finalists based on all the other parts of your personal value equation that are most important to you then it would certainly be well worth considering.
Phoenix