Forsaken
Well-known member
I've looked at @Bob's Showcase one before and it seemed to be overkill for showcasing an aquarium. I can certainly see it as the "garage" that the sites use. I tried doing something similar with Xenforo's Media add-on but didn't really work well.
It comes down to how you use and configure it, as it can be as simple or complex as you make it. You can use it very much like you would Resource Manager, or you could go over the top and use it as a database for a game (which I have done in the past).
It allows for building better presentation for member projects, which is going to be one of the bigger draws to your site.