Now, if only Windows 8.2 or 9 focused some needed attention on large form-factor ("desktop"), I'd be very happy.
And that's gotten better with Windows 8.1.
It's quickly become my favorite device, and I love the "full-desktop" power of Windows 8.1 combined with the dock for traditional apps. The only gripe I have is the dearth of Metro apps on the Windows App store. 1st party apps from Microsoft tend to be very usable, but the few 3rd party apps I've tried have clearly been a halfhearted port, and tend to be very buggy.
To echo an above poster, Modern IE is surprisingly great, with the exception of sometimes jaggedy text rendering at smaller sizes (anyone else experience this?) All in all, I've gotten far more value than I expected both from the price and Windows 8.1 itself.
Windows 8 makes a lot more sense when you use it on a device it was designed for. Even one of the staunch anti-8 coworkers at my office had to admit the t100 was nice to use. It's also amazing how fast the bay trail atom is, yesterday i was playing mirror's edge on it :)
Other than that it's the best non-desktop device I've ever owned.
The short-term advancement I am looking forward is having my ipad mini and macbook air be a single core that can be docked a la Atrix and also become a full blown desktop on a dock a la surface 2 with gaming capabilities. Having it on a phone-size would be the next step but the 7 inch screen is so much better for reading.