Hi Antbean,
Welcome to the Mattress Forum! 
While other people’s comments about the knowledge and service of a particular store or business can certainly be very helpful, I would always keep in mind that you are the only one that can feel what you feel on a mattress so I would be very cautious about using the comments of Rollins, Fisherbrains, or anyone else’s suggestions, experiences or reviews on a specific mattress (either positive or negative) as a reliable source of information or guidance about how you will feel on the same mattress or how suitable or how durable a mattress may be for you. In many if not most cases they can be more misleading than helpful because a mattress that would be a perfect (or horrible) choice for them or even a larger group of people in terms of “comfort”, firmness, and PPP (Posture and alignment, Pressure relief, and your own Personal preferences) may be completely unsuitable for someone else to sleep on (even if they are in a similar weight range). In other words … reviews or other people’s experiences in general won’t tell you much if anything about the suitability, quality, durability, or “value” of a mattress for any particular person (see post #13 here), so I would always use caution when considering them.
While nobody can speak to how any specific mattress will “feel” for someone else or whether it will be a good “match” in terms of comfort, firmness, and PPP because this is too subjective and relative to different body types, sleeping positions, and individual preferences, sensitivities, and circumstances and you are the only one that can feel what you feel on a mattress … outside of PPP (which is the most important part of “value”), the next 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 see or “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 would always make 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.
As you may be aware from reading this thread, the Dormeo website doesn’t contain any meaningful information about the density of the polyfoam and memory foam layers and components in their mattresses, so I hope you found out all the information here to confirm there are no lower quality materials or weak links that could compromise the durability or useful life of the mattress you ordered.
The 3 most important parts of the “value” of a mattress purchase which can help you make more meaningful quality/value comparisons between mattresses would be suitability (how well you will sleep), durability (how long you will sleep well), and the overall value of a mattress compared to your other finalists based on suitability, durability, and all the other parts of your personal value equation that are most important to you (including the price of course and the options you have available after a purchase if your choice doesn’t turn out as well as you hoped for).
Phoenix