Also for amateur hobbyists an absolute must! Whether rigid wire or flexible cables, whether very thin or thick, all line styles are stuck and can be combined excellently. With lever open, the cable can be pushed without resistance, to simply close touch and contact "snaps" to, no pushing required. Even at high currents no problems, exactly as promised by the manufacturer.
Incidentally also ideally Suited to retrofit additional cable with connectors for hard drives and co in the PC.
Definitely better than its predecessor. No more wire nuts!