As the title already suggests, I like the Chronoplan A4 quite well. Here it is already fallen in the first week of normal use one of the two "zipper-stopper". Since I use the Chronoplan daily now has approximately 1 month, the first wear shown. However, this plan within the Chrono (wear the pocket on the left - which I do not use) is. Due to the rapid shortcomings I subtract a star. Otherwise, top, though not cheap.