The original CR article noted inconsistent braking performance, performing very well the first time they tested it and very poorly every time afterward. Frankly

The original CR article noted inconsistent braking performance, performing very well the first time they tested it and very poorly every time afterward. Frankly it just seems like a bug that Tesla never noticed in their own testing. The fact that they screwed up the brake control software and did not realize this until some journalists complained about it makes me very concerned about Tesla's overall design/QA/QC process.