This app is a decent enough mobile adaptation of Trello overall. It offers most of the same features available on the standard web version, with some exceptions.
The one thing that irks me to no end is that upon visiting a board marked as having unread activity, the changes will often take a long time to show up in the rightmost panels activity feed, and often wont show up at all. Please fix this issue! It is quite annoying.
Backfeeder about Trello: organize anything!, v3.4.4