you don't even need to login to read it
if you do login and use the app, you can download it for offline use
there are some REALLY awesome comics available.
the organization may seem a little weird at first pass, think of it as a collection of multiple libraries.
a "module" is a library/collection, within a module you'll see "anthologies" (a collection within the library), and then collections, and then individual items
so for example Dark Horse has a "module" - within it are anthologies like "Aliens" and "Buffy Universe." within the anthology there are collections for the different series within, and then the items are the actual books