Hi Smytrous,
Most new mattresses will have an initial smell for the first few days/weeks but if the foams they use are made in North America (which I believe they are) or are CertiPUR certified then any smell wouldn’t be a safety concern for most people.
Unfortunately the information you linked doesn’t include any information about the quality/density of the materials in the mattress. If you can provide the information listed here about the specifics of the mattress I’d be happy to make some comments about the quality of the materials inside it or the mattress as a whole but without this information it’s not possible to make any meaningful comments about any mattress or make meaningful comparisons with other mattresses. There are some brief comments in this topic that may be helpful and while it also doesn’t contain complete specs either, they would certainly be enough to indicate caution and make sure that you find out all the specifics that you need to make an informed choice before considering it.
Phoenix