Just received these today - They shipped as soon as they received my order. Included in the envelope were some really cool airplane paper clips.
Excellent quality notebooks, very similar to Field Notes. Graph ruled paper is of very good quality. Takes a FP quite well with no feathering. On some of the wetter inks, there is some bleed through, but certainly nothing too crazy.
There is some really cool info on the front and back covers such as airplane types, speed, barometric and other conversions, as well as international aircraft registration prefixes.
Very cool notebooks, especially for someone who is interested in aviation.