For my introduction to Rhodia, I grabbed the Essential Box. I really like the head-stapled look.
I also got a couple of A7 pocket sized side-stapled notebooks. Here they are next Field Notes and Doane Paper notebooks for size comparison. The Rhodia are smaller and would make a pretty nice EDC notebook if the Field Notes/Doane Paper 3.5″x5.5″ form is too large for you . The glossy covers on the Rhodia might make it wear better in the pocket, but I prefer matte, kraft paper type covers that I can write on.