Get them on axis horizintally and vertically - ideally have your ears midway between midrange and tweeter.
Do you think this makes them a 'sit in more or less the same spot' speaker? Not necessarily in sweet spot terms but whether outside of this they sound particularly uneven.
The nature of the setup at home means that they need to sound decent from the sofa (around 3.5m away and fairly low) from sat at a table (more like 6m away and higher) and also generally chasing around the room after a toddler.