The Dahle cuts - after removing the staples! - All the available magazines from me (70-80 pages) is easily freed from their "edge". Stronger magazines (eg GEO) I share with the knife in two approximately equal portions and again the cut is then easily.
The already mentioned "stability" is no problem for me - after the first two sections are the know it. Also the stop (the not really sitting firmly) is no problem for me because I already orient myself on the centimeter scale, which is more accurate.
Cuts even through thicker stacks go without problems, the effort is justifiable. The "pinching against slipping" works perfectly. All in all a not quite cheap investment, but one that is worth its price.