I mostly use it on an iPad mini in landscape mode, when lying down and casually reading. Two things:

1. When scrolling on the main feed, if your left or right finger accidentally touches the screen, instead of scrolling, you're inside the post, which isn't what you intended. So you have to be extra careful keeping your fingers away. Be nice if there was a 1 or 2" zone on each side which only does scroll instead of tap. Not sure I'm explaining it right.

2. Again, on an iPad mini, the Post box only shows a couple of lines for editing. Most of the screen is taken by application chrome.

Other than that, love the app. Use it daily.