(Context: similar to you)

I suppose it's similar to how people used to buy things like Directory Opus. The point isn't so much that the default one doesn't work. A bunch of functions like those listed here, e.g. batch rename and easy image conversion, would be a great help to power users, and should be better than having to install a separate program for each one.

I doubt it's aimed at everybody, but it shouldn't need to be. Software tailored to a specific group's needs is likely to be better for them than something too generic.