Just got through running Genesis with my very old MacBook Pro that's ben taken out of commission (I knew I kept it around for a reason, LOL) and everything ran perfectly smooth. No hiccups whatsoever. Downloaded the software, launched it, hooked up the mic and went to it.
I had previously used ARC Mobile with my iPhone so it's a bit of an apples to oranges comparison, but one thing I noticed is that when I ran it with Genesis, it advised me that my sub volume was too high and that I should turn it down. It never did this with ARC Mobile and I hadn't touched the sub settings. After I turned the output down a bit, I continued running everything and it did its thing.
It definitely set the levels higher with Genesis than with ARC Mobile, but that's no biggie to me. I'll just adjust the volume as needed.
I've only briefly listened to some 2.1 channel music so far, but to me it definitely sounds better. The midrange clarity is improved and there is more depth to the soundstage. Imaging is also spot on. Bass also seems tighter and more defined. I had played around with my sub level after I used ARC Mobile because it was way too thin they way it was configured, but with Genesis it's good. Not boomy, not thin, just accurate.
I'm not sure how much of the difference is due to using the stand mount ARC mic vs. the internal iPhone mic being held up in the air in a haphazard way, or whether it's improvements to the algorithms and whatnot, but it sounds great to my ears!