GoodReader alternatives

iOS
GoodReader
GoodReader is the super-robust PDF reader for iPad, iPhone and iPod touch. With GoodReader on your iPad/iPhone, you can read virtually anything, anywhere: books, movies, maps, pictures. Use it once and you’ll be hooked. If you work with documents, soon you'll be wondering how you ever managed to use your iPad or iPhone without GoodReader. Besides reading, you can also sync your files with remote servers sync with Dropbox, SkyDrive, SugarSync and any WebDAV, AFP, SMB, FTP or SFTP server The best GoodReader alternative is Apple Books

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Reviews
Dragonfall | 26.10.13
-Crop feature is EXTREMELY useful. Needs symmetric crop or auto-crop. This is the only app with crop as far as I know.

-Needs to be able to disable tap to turn pages. With the iPad bezel getting thinner, thumbs touch the sides and I keep turning pages by accident. Swipe to turn page only feature needed.

-UI needs an overhaul. It's a bit of a mess right now. This includes syncing which is a bit clumsy.
Can1867 | 21.07.13
It just keeps getting better. I first bought it because of reviews and research. It is very well put together. An iPad must have.