The BEST part of W10 so far is the virtual desktops and the way you can switch between apps and/or desktops by swiping from the left. Also switching between desktops with the Ctrl WIN Arrow combination. Completely brilliant. It turns your SP3 into a multimonitor setup without the hardware. Crazy useful.
Also love how Windows apps (such as Netflix, Hulu, etc.) are now windowed and sizable.
Everything is very fast and smooth. Honestly excited about this. The combination of the W7 Start Menu and the W8 Start Menu into one super menu is awesome. And guess what, it ACTUALLY MAKES SENSE. The average non-technical user will "get this". Gone are the multiple hidden steps to do anything. One can literally learn to fly around on this OS will very little learning curve.
I think MS has a true winner on their hands here. Hard to believe this is only a preview build. Usually with a new MS release I have multiple, "What were you thinking?!!" moments. With Windows 10 so far I've had nothing but, "Damn MS, you nailed that!" moments.
SUGGESTIONS:
1) Allow me to make Start Menu semi-transparent.
2) Can't seem to figure a way to make Netflix fill whole screen. It will maximize but not cover the taskbar. Any help here?
3) On my desktop, games are crashy. Game doesn't just crash randomly, who computer shuts down. Early build so quite understandable.
4) Add a "stay-on-top" feature for windows that I wish to always remain on top.