Regarding the recent changes to the UI:
For me, the My Tasks list is home base. I return to it many times during the day, but I do not always have the sidebar open. Often, I have Asana running in a separate browser window on one side of my screen as a sidebar that I use to keep my work on track, so I preferred being able to reach it without opening the sidebar.
We also seem to have lost the team calendar function. I see how to view project calendars and a My Tasks calendar, but I do not see a way to get a team calendar except with a workaround (create a search for tasks in a team, save search, use calendar view).