see my more recent post ....I have a 900, and it all seems to be working smoothly and quickly (though I couldn't get it to boot from USB while Windoze was lurking, so had to use Esc and insist).
Have to admit I have not done a huge amount other than point and click (though am dead impressed that I could set up wireless, load video drivers and update absolutely everything just by clicking 'ok' occasionally).
But I haven't found anything that doesn't work yet!