Okay, I wanted to resurrect this thread because my opinion of the patch effects has completely changed. Since my 15" SB2 1TB received the firmware update, it has been a hot mess of performance issues. First, the touchpad and keyboard are now lagging like crazy, both on battery and when plugged in (it happens regardless of which power mode it's in). Second, opening apps and files is slower, and general performance has dropped significantly. Games like Halo Wars that played flawlessly prior to the patch now suffer from intermittent lag.
I've done a bit of research and I'm not alone. I'm not sure if this is specific to the Surface line, or if other machines are also suffering slowdowns. Right now, I have four days left before the holiday return policy ends, and I'm seriously considering returning this and rethinking the whole thing. It's just not performing as a $3,400 notebook should perform. In fact, it's not performing as a $700 notebook should perform.