About the Negative Quality: Cyber-Snob p.57
"A character must have at least 1 point worth of Essence of betaware-grade cyberware or bioware to be able to take this quality."
Last time I checked, your not allowed to start play with Beta-grade ware, so why make a flaw that requires it?
Or am I missing something?
Got in Proofing, slipped through the crack in the time crunch.

Suggested edit is to replace BETA with ALPHA in all instances, then lower the points from teh quality. I'd say 8, others think 8... we'll see.
Regardless, this should be in the errata. (And, for everyone, there will be errata, so any issues you find, LET US KNOW! The more you find, the more we can fix.)
About the Positive Quality: Biocompatibility p.54
"the Essence cost of implants of the particular chosen type are reduced by ten percent, rounded down to the tenth."
Really? That would mean that something like a datajack would round down to 0 (.1*.9 = .09 which this would round down to 0) Is this really intended?
Badly written. The goal was to take, say, Alpha's 0.8 and reduce it to 0.72, which would be 0.7, but the phrasing on that was awful. The exact wording will come in errata, but it should read something like:
"Reduce Essence Loss from 'ware by an additional 10%, thus Alpha (Normally an Essence Cost of 0.8, ould become an Essence Cost of 0.7".
It'll make your read much better.
Shadowrun players can handle two digit Essence. At least I hope so, I have a bunch of 0.05 things in there!