My girlfriend is still having networking issues on her MBP. I asked about the problems on IRC and was told that it was a regression that should be fixed in El Capitan, after updating to El Capitan the issue still persists.
I was considering buying an MBP myself but after seeing the issues she is having I am changing my mind, especially after this reveal from Microsoft.
Yes, the issue was eventually fixed, but I'm done with Apple. They have lost my trust.