I just bought the app. The one I was previously using cost 2.99 and has many many issues, like not showing usernames of comments as well as once I've logged in to the app I can no longer see comment counts on the stories.

I'm still getting used to the differences between the way stories and commenting works but my initial impression is that I like it a lot more.

It does seem a lot faster more functional than Michael Grinich's app. I'm not sure I really like the 3 line comment previews and having no indication of how many replies a comment has. EDIT: it does show the number of replies, I don't know how I hadn't noticed.