very easy. It has quite a large processor footprint so you need a good processor, whereas Traktor likes a lot of RAM. I use Serato when i play out now, and am finding that more an more places have got the SL1 soundcard already installed, so its a matter of turning up, plugging in your laptop and away you go.
As for mixing, there is literally no difference to cd's/vinyl whichever you use to control it. Its amazing, i dont think i could go back to vinyl/cd's only now. Serato doesnt do any beatmatching for you, you still do all that, it literally allows you to play mp3s using technics/cdj's to control everything. You can loop, scratch and record on the fly into it and playback instantly. Instant doubles, full detailed waveform, and now with version 2.0, effects are being added.
As for the checking emails thing, err no i dont, and as for the old "tsk tsk yeah but laptops crash", well i've never had this yet either, and i'm yet to see any laptop dj crash yet.