Using New Outlook on Windows for personal email, calendar, and contact management
IMHO, the biggest issue is that the new Outlook no longer seems to cache ANY data. If you want to sort where newest messages are at the bottom, you will be scrolling forever to get there. There are more issues that this, but this one to me is the deal breaker. If you have any volume of messages saved, it is unusable. This version is a major step backwards, it is unfathomable Microsoft has presented this to customers as an enhancement.