The UI is a bit clunky. The worst thing seems to be when an iCal file is used to import an event the URL field is nowhere to be found. Most video conferencing software (as well as other applications) include a URL field in the invite. There seems to be so much stuff for replies about if I am going to a meeting or not (a feature I never use) yet so little for things like URL. It also periodically loses events from both the web version and the app