Maruman has terrific paper, be it in the Spiral Note Basic (70 gsm), the Sept Couleur (75 gsm) or the Mnemosyne (80 gsm). This paper is fantastic, and I enjoy writing on it will all my pens: it’s nice, smooth, and white without being bright white. It shows off sheen well and shading very well, has decent dry times and almost no ghosting; I easily use both sides of the paper with my Sailor 1911L 21kt H-B. I’ve observed no feathering and no bleed through.
I bought different sizes, bindings and page layouts to see which ones I would like best and reach for most: in the spiral bound I bought the N193, N184, N196 (all top bound), and the N105 (side bound). Since they all serve different purposes, choosing one or two is impossible.
This N105 has dot ruling, which makes the notebook ideal in landscape mode. I write within the dots and ignore the Title and Date/No spaces at the top of the page: I reserve this area for corrections or marginalia. I mainly use this notebook for notes in point forms, concept maps and terminology mapping. I only use one side of the paper for these tasks by choice.
It is easy to tear a page off cleanly thanks to the perforations. It also tears cleanly from the spiral without leaving pieces of paper stuck in the rings. I like that the front and back cover are plasticky and textured—easy to clean and grasp.
I wish the Mnemosyne came in B6 Slim size, bound in small, stitched signatures, just like the Midori MD B6 slim.