I am a huge fan of Cashmere and have it throughout our houses. Pearl is in our bathrooms and does have a sheen but it brightens up the room with light reflection.
Flat has no reflection at all. I would check them out in person as Cashmere does not have the same sheens as their other lines. We have the low luster in a family room because of kids and it looks fine. It is one step up from an eggshell. Cashmere has a very soft look to it as even with the glossier sheens it just looks soft as it looks sprayed on even when rolled.
The low luster, pearl or medium luster can be scrubbed clean with zero issue. I do not think the flat can be. The low luster in our kids rooms has stood up to those walls that they sleep against that always get dirty. It scrubs right off. It also touches up very easily.
I think it is on of the best looking paints out there regardless of cost. It should not cost that much more as it is easier to apply and covers better.
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