Hello,
I had the same issues as you all and I think I found a way to do that kinda properly.
First, the object you have to add to ListView (with AddItem) is NOT a Widget, it’s like a ‘Data Object’.
Second, the objet type set as ‘Entry Widget Class’ should inherit ‘UserOBJECTListEntry’.
Then, in this object, you can implement ‘Event On List Item Object Set’, that will give you the ‘Data Object’ linked to this Widget.
Coming from this, you can implement the SetText when needed to update the widget as the Item evolves 
Hope this helps,