I've been playing around with Views exposed filters on an entity. I have so far been able to create a relationship to another entity through an Entity Reference, and exposed the fields belonging to that entity.
What I needed to sort my entity by was a term reference field on the referenced entity (this is a one to many relationship, the sorted entity can have any number of reference entities). I was able to get a multiselect field to do so, but this is really not ideal. Using Better Exposed Filters I was hoping to get a checkbox list. But it seems that the nature of the relationship doesn't open that possibility up.
So the question is, if I needed a View that allowed sorting an entity by an exposed Term Reference Field filter on all of its Entity References, what method would I use, if not Better Exposed Filters?