Used extensively for selling over the past 5+ years, and it's consistently had one issue or another that forces the use of desktop/ mweb. It's been long enough that these missing features and bugs should be resolved - but they clearly aren't a priority. Examples: cannot print shipping labels for GSP transactions, duplicate (or missing) notifications, app crashes randomly and intermittently, and the latest issue is the inability to print a shipping label at all - the app loops or crashes.