I use Outlook.com as my main email provider. And I'm managing to convince people to move off've Gmail onto it because of it's streamlined interface. What do you find wrong in it?
An example: while searching in your Outlook.com "client" it enters a new state, the search state. When you are done searching there is a left arrow in the navigation panel which you can click to go back to the "normal" state of things. Awkward.
I'm a longtime Windows user, familiar with Microsoft user interfaces, but to me there is nothing to love about Outlook.com.
https://news.ycombinator.com/item?id=13932226
Issue still happens to me: easy to test switching agents.