See T9713. The commit UI can be significantly improved.
See PHI391. This is probably that we send synchronized reads to out-of-date nodes immediately after a write. Edit: no it isn't?
See PHI407. Some of the navigation around browse and compare is unclear.
See PHI803, which notes that repository Tags (the Phabricator object, i.e. Projects) aren't visible anywhere reasonable.
See PHI649. The file path typeahead in repositories can be difficult to use when your repository has a lot of long paths which all start with /path/to/some/actual/directory/with/source/in/it/com/java/oracle/.
See PHI880. The file path typeahead would benefit from better caching in large repositories.