I would add to that:
Faster render time !!
sometimes it takes ages for one model, while the same model in artlantis takes minutes.
As i mentioned - for us, veteran users, we already know the tricks to make it faster or use batch render over night...... But try convincing migrating users that have other alternatives that make better results.
It seems that for now, the only real reason to use renderworks is for BIM. But if you don't use BIM then why.....??