Hi persephoniekali,
The specs you listed aren’t complete and don’t include all the layers (such as the pillow top material or the quilting materials) which would be necessary to make a meaningful assessment of the mattress (see post #4 here). It also doesn’t mention if the price is for a set (mattress/foundation) or for the mattress only.
The specs you did list though include some lower quality materials which could be a weak link in the mattress so I would want to know the missing information and also make sure that the price you are paying justifies the lower quality and less durable materials in the comfort layers especially and that you have realistic expectations about the useful life of the mattress which would be less than a mattress that used higher quality materials.
Of course it’s also true that a low budget mattress will also use lower quality and less durable materials.
If you had several finalists and the one you chose is the best match for you based on the parts of your personal value equation that are most important to you and durability is not a significant issue for you then at least you have made an informed choice and will have realistic expectations about the useful life of the mattress.
Phoenix