How useful is Motion 5 without Final Cut Pro X?

Question

My video editing needs are very, very pedestrian and seldom. I have no real need for Final Cut Pro.

When I do make videos, however, I like to customize titles a bit more than what iMovie allows. So Motion 5's relatively low price caught my eye immediately.

I know that Motion's main strength is putting together parameterized effect packages that can be exported to and used wholly within FCPX. But if its standalone functionality is full-featured and relatively hassle-free, it might be worth it.

So; advice?