It just *feels* weird
This is why it’s so important to get very specific and logical explanations when someone judging your UI decides not to like it. ”It’s just weird” and “Seems confusing” just won’t cut it.
[The new widget] is odd. And yet, both the checkbox and the menu part tested very well in the lab. The people who hated the widget outside the lab also understood how to use it but promised others wouldn’t because it was so «weird.» There were some optimizations I wanted that didn’t make it in (highlight the current selection state in the menu, show keyboard shortcuts, etc). But it tested fine without those things.