A more compact layout
Currently, there seems to be a lot of 'dead' space in the new UI. While I like the more modern look, it should be possible to makt certain UI elements a bit more compact, much like is possible on Outlook for Windows...
Currently the Outlook interface has alot of unneeded space - make a dense view so that I can fit more text into the screen - less space between folders, less space between icons on the top, less space on the My Day screen - too much wasted space as is currently
Alpha Bett commented
Like the look vs. old outlook, but this has too much space around everything. Reducing the font size didn't increase the amount of information displayed. These UI elements waste space on my laptop screen.