Haven't used it but have been tracking it. They keep extending the free preview period which tells me they are probably having trouble getting users. I think they sold to Logos as well. Anyway... best I can gather is that it is good for the smaller church with no centralized tech/production support. Everyone can contribute and edit.
At our church we use Planning Center & ProPresenter in all three of our rooms and ProVideoPlayer as well in main. We collaborate on plans in Planning Center but I don't want multiple people contributing to what goes on the screens. There is a level of quality control that we don't want to lose.
I guess that didn't really answer your question but I didn't want your thread to go unanswered entirely.