Have a couple Safaris myself, they've definitely helped my handwriting (long way to go still...). I find that paper makes a pretty big difference for the writing experience with fountain pens
I do love the line spacing on the Rhodia, though. Some others are too narrow and it's hard to keep my writing both legible and tiny at the same time. Others flash back to those writing pads they give you in kindergarten.
I really like a number of the Japanese spiral bound notebooks too. The paper is great for my (mostly Japanese) fountain pens and inks. However, it’s much easier for me to find Rhodia here the US.