I've written often about the lack of iPad font choices, the terrible
hyphenation and justification, the ragged word spacing and the apparent lack of any
controls to create something that just looks decent.
The great thing about FBReader is that it takes a poorly formatted ebook and turns it into a nicely formatted one automatically, where you can
control the font type, size, line spacing, text encoding, margins,
hyphenations, and line breaks all from within the settings of the ebook itself.