The new look and feel of MaplePrimes is ugly and disfunctional nearly beyond belief. Please put back the old look and feel ASAP. I am not commenting here about any new controls or features because I haven't tried them yet. The wasting of space on the screen is incredible. The windows with sharp corners are ugly. The grey colors make it look like selections are inactivated. Most of the controls that can be clicked on are not highlighted in any way.
Just as an example of the waste of space, I now need to scroll down three screens just to get to the Active Conversations stack.
Once again, anything that you can do to make the look and feel similar to any StackExchange forum would be an improvement.