Hands down one of the worst application and platform, and it's not just their ancient looking interface. They push updates frequently which changes not only the outlook not any update to their backend messes up existing sensitive information like credentials. As a software developer myself, it is cringe inducing seeing a software this bad. For it's developers, a pro tip, if you have to redesign the way your app looks for a few measly feature.. DON'T. It's never worth reeducating people