I wish they sold a half and half. I have one of those portable induction burners, but it's only 1800 watts (?). My best ceramic burner is 3500 (I think). Anyway, the point is, the portable one is more like one of your supplemental burners, not your main, go-to burner that heats up quickly. I expect that if it was on a full range, there would be better burners than the portable one.
That said, my pressure cooker is induction ready, so I can use the portable for that and still have the rest of my stove for cooking other things without steam billowing out all over everything (and me).