Zassenhaus do some decent products but they have some flaws. most of these companies have flaws at least in some departments, like if they start venturing into electronics or whatever. I bought a classic style zassenhaus kitchen timer, with a magnet and then after about 6 months it fell apart and i realized it was made with low quality control. even part of the cover came off. probably they have a few good bits and pieces, maybe in more timeless products like knives, chopping boards or pots have higher standards of quality control.

ZWILLING, on the other hand, they just do not compromise and they are not messing around with quality standards. it is a classic german steel company based in Sollingen, the german capital of steel, and they haven't had any aggressive takeover in the last 100 years.

they are so successful but only among pro level chefs and people who know the brand and what they stand for. they bought STAUB the alternative to Le Creseut. Since Le Creseut got bought about thirty (EDITED) years ago, STAUB is the industry standard for enameled cast iron.

ZWILLING make many of the best pro level kitchen knives, stainless steel and ceramics. go with them for ALL your kitchen products if you live in Europe. If you live in US then it might not be worth it due to import fees and taxes.