Overall this is a pretty great plugin. There are, however, a few flaws.
First, it really needs to support overriding on Custom Post Types and Custom Taxonomies.
Second, single image overrides would be welcome – it's really messy to have to create a new image set to hold one image should you not want a slide show or random load on every view.
Third, the backend AJAX processing is really slow if you have a lot of images loaded in a set. I have *fast* hosting, and it still takes upwards of 5 seconds for it to think and load in the thumbnails. I'm sure some efficiencies could be made.
I'm pretty happy with the plugin aside from these oversights.