Unlike the feather filled pillows, memory foam does not lose its shape over time. There will never be a need to “fluff” this type because it is designed to, as stated before, resist motion transfer. They are made primarily from polyurethane, and material specially manufactured to keep its form for years to come, which also lends to the products longevity versus traditional ones that should be replaced roughly every 1 to 3 years.
There are very few foreseeable issues with this choice. One of the few complaints is that it may take a while to get used to. Being that memory foam is quite a contrast to traditional feather pillows, uncomfortableness is very common for the first week or two. However, once surpassing the threshold of the first few uses, the pillow becomes quite enjoyable.