Hi LoveWarrior,
I really can’t say much about the “value” of your purchase because I don’t know the size you purchased, what else besides the mattress was included in the purchase, or what else you were comparing it to. I also don’t know the blend of the latex, the type of cover, or the density of the polyfoam in the base layer.
While I would want to know the density of the base polyfoam layers … it seems to me that there are no obvious weak links in the mattress and Restonic latex mattresses are typically in a “better than average” value range compared to other major brands.
The “value” of a mattress purchase (and I look at the total purchase not just the mattress) is relative to what else is available to you that you are considering as one of your “finalists” and on the criteria of your personal value equation that are most important to you.
The “best deal” is the mattress that is the “best value” for you but if you tested this mattress carefully and objectively and it’s a good match for you in terms of PPP, you have confirmed that all the materials are good quality and there are no weak links in the mattress, and all the other parts of your personal value equation point to this purchase as being “best value” for you compared to the other mattresses you were considering, then you did well IMO.
Congratulations on your new mattress 
Phoenix