OK, I haven't dug real deep into the new OS by MS, but here is my first impression:
I am not pleased with the fact that you don't get a regular start menu anymore. They have changed it to where you start basically with a page with large, and I do mean large icons of the programs that are available to use. They don't seem to be in any real order, and I have yet to determine how to customize it to look the way I want. This is a huge detraction from what I am used to seeing.
To get to your desktop you have to click on an icon that will take you to your desktop. If you wish to launch a program, you have to click on that program's icon to get to it. From what I have experienced so far, alt-F4 doesn't end the program launched anymore.
The iso is huge. It won't fit on a standard DVD disk, you have to use a dual layer disk or blueray disk in order to burn the iso. Installation went smooth though and I was up and running in very little time after getting the right disk to burn the iso.
Will keep you all posted as I use the OS to see what other quirks there are and what features I like or don't like.
Added:
Further looking into the installation and I found that this installation removed the ability to get back into my Window7 installation. I had to actually boot from my Windows7 install disk to repair the boot loader so I would have an option to get back into Win7.
I can tell you all now this is one OS that I won't be upgrading to.