I've had the light grey version for my chromebook flip for a couple of years and I still like it. I bought the dark grey version for my reMarkable and it's a great fit. For the stylus:
The pictures show a problem I ran into strapping the pencil sleeve around the felt case. I solved it by sliding a strip of corrugated cardboard inside the front pocket. It's stiff enough to prevent the felt case from bending when the tablet isn't in it.
If corrugated cardboard is too low-rent for you, you could use some fancy black foam board left over from your reMarkable custom foldable cover project.