Has anyone tried the RTM/ Windows 8 Trial?

MS seems to have improved the desktop icons look, by moving the icon to the center of Tile.

I have not tried RTM so would be glad if people who have tried it, let us know the remaining enhancements made to Start screen & other features.

But I still feel a small icon ( half the size of existing small tile size on Windows 8 start screen )& ability to change background color for all the desktop program tiles will make it look clean, consistent and beautiful!

Thoughts?