After reading some old (a year ago) threads and reviews about the Levenger Circa product I was really interested in trying it out for GTD. I decided to go by a Staples and look at their version to check out the different sizes before I ordered from Levenger. I was really surprised to find them to be very poor quality. The pages stuck on the rings and folding everything back in order to have a single flat writing surface was difficult and made the whole system impractical. I have yet to read any complaints about this. Does anyone know if it is a problem also with the Levenger brand? Also I haven't read any recent posts about using the circa for GTD so I'm wondering if people are still finding it useful. Thanks!