I thought, from the description, that this was some sort of slim, notebook computer. Instead, it's like very thin sheets of whiteboard in a notebook. I'm not that concerned with saving paper, so I wouldn't have bought this if I had understood what it was. It has a pretty hefty price tag for what it is. I also don't like that there are dots instead of lines like a regular notebook.
It is very sleek, and the pens are smooth to write with and dry fairly quickly, so if this is something you are interested in, you will like it.
I just feel like the description is misleading and presents it to be something it isn't. And it costs too much.