Pros: Excellent price, with a great feature-set
Cons: Amplification somewhat lacking
On both Windows (8 x64) and Linux (kernel 3.5 x86) the drivers were correctly downloaded and applied automatically, although you can download the latest drivers from Focusrite's site. Also on there site is a collection of free VST plug-ins for your DAW for recording.
As far as sound quality goes, this thing is pretty darn close to my ODAC. But since this unit is powered via USB only, if you use high-impedance headphones, you might want to consider placing an amp between the phones and Scarlett. My 250-ohm Beyer DT990s require the volume knob to pretty much be maxed out. Even the monitors, active-powered KRK Rokits, were noticeably softer.
All in all, this unit is perfect for hobbyist audio recorders, audiophiles on a budget, and gamers alike.