So, I don't do this often, but when I do it's a MAJOR annoyance! The iPad app does not have a lot of the features that the downloaded version has. So it's great that I can do stuff on the road or on site but EACH TIME I have to redo the entire document! Small things like the font is all wrong are very annoying. I will save my my templates to the cloud and then I have to change all the fonts for my iPad because it doesn't come with that default font that the downloaded (DL) version has.
Additionally many common features that the DL version has are quite a hassle to make work on the app. For instance adding a blank page, files or pictures to a document. If the app was made more similar to the DL version that would increase its uses significantly!