High quality product
I purchased the A5 notebook (lined, grass green) and am very happy with my purchase. It's clearly well made from good quality materials. The pages are thick enough to prevent ink from bleeding through to the other side. The only downside -- a very minor one -- is that the pages are slippery enough that the ink will smear if you use a fountain or gel pen and don't let it dry completely. But I don't think it takes ink that much longer to dry on this paper compared to regular paper. It's a very minor inconvenience given how great the notebook is otherwise.