The only real reason I bought the app was because iBooks wastes so much space on the margins on my iPad. Its also a pain to import books without having to sync inside iTunes using another Mac. However this app crashes every time you try to import multiple books from Dropbox, and Ive had a few crashes just from reading.
Not a good first impression for this app so far, and the extras which you have to pay for seem superfluous.
Joedbq about Marvin Classic - eBook reader for epub