Sent: 2/23
Received: 3/6
Sent on a Monday and received my repaired 360 on Friday of the week following. Took 9 business days, less than 2 weeks including shipping (and a 2-day shipping delay due to 'Mechanical Failure in Railroad Flatcar').
Still just a release-style Pro though, no HDMI as a nice side effect of needing the repair
Mine is do back on the 11. That put me right at 15 days.