The centered icons can be turned off, I saw an option for that in a youtube video these days.
For anything else, which is just different to be new and not really helpful, I have strong hopes the developer of the 7-taskbar-tweaker will take care of: 7+ Taskbar Tweaker - RaMMicHaeL's Blog
I'm using the tweaker for years, it's excellent. It enables access to features of previous taskbar versions and allows to get rid of some of the useless features as well (jump lists, grouping, dragup etc.). One of my favorite features is the ability to use "middle mouse" to close an application (just like it is everywhere else for "tabs") or press "ctrl + middle mouse" to kill the program without entering and searching task manager for the task behind. You can also just drag files onto taskbar apps, they will launch if not started etc. Can't do without for long.
As for the modern GUI design, I agree.. designers these days really try hard to get you frustrated. It can be very hard to tell which window has focus, no window borders, hard to grab window edges, tiny or hidden scrollbars etc.... But, Win7 and classic mode is still doing fine for me for now.
Some applications only being available as windows store apps is another thing which puts me of, I really don't need the locked down android phone as desktop experience.
Did they improve Notepad this time? Adjustable tab-width and support for indenting text-blocks by tab key? Support for linux line endings and big files? Multi-selection, a text filter and categories for the service console? Copy and paste by keyboard in the command prompt? Will start menu finally find "dopus.exe" if I just type "dop" or "d*s.exe"? Will remote desktop support multiple screens and auto-scaling? Network traffic meter on the taskbar? Working bluetooth stack? Will the task manager be useful again? Less of the "Windows has to restart" pain? Less USB driver/device issues?
Looking at the screenshot, I doubt they did anything useful like that. o)