Yes, I have been using the Arc notebook system ever since I found the arc holepunch at Staples - that was the missing piece in the whole puzzle for me. Since I play a lot of roles as an IT consultant and HIT consultant its great to be able to move pieces from one notebook to another as necessary.

This video shows my full size Arc notebook, (and what Staples Arc accessories I have in it) which I carry to board meetings, regular meetings, and just about everywhere in my ThinkTank Urban Disguise 60 bag. The pen I keep attached is a Cross Tech 3 Multifunction Pen. It's cheap and practical and more importantly, it fits the loop. However, I typically use other pens and the Cross is just my 'backup.'