I didn't really have any trouble downloading everything. Installing it is kind of slow though. In fact I think I spent longer waiting for it to unpack and install than I did downloading it. Might be because I installed it to a NAS drive (which had the free storage the full install needed).
I would say something about how awesome all those extra mics are, but with the manual only being online and completely inaccessible I'm not exactly sure how to use them correctly. But just fiddling seems like they were pretty nice at making the sound wider. Maybe there are some videos I can use until some documentation is available.
Seems to work with SONAR fairly nicely, though I've yet to do more than hook up a bunch of multi-outs and play some MIDI files.