I use it now since about 4 weeks daily for paper, plastic, cardboard and fabric sometimes and there have not been any signs of fatigue. Even sturdy box you get by and not even squeak.
The build quality is stable and confidence-inspiring. Light "seams" on the handle are indeed seen, but do not interfere. The opening between the handles may be used as a screwing aid for stiff water bottles and works quite well.
The gap itself is about 21 cm long, the average is about 10 cm.
Conclusion: Recommended, how long they will remain so sharp, I'll update.
