I got the "Pwr Stg" message once or twice but it was working OK (steering just seemed a little heavy at times - 2006 Redline, 97k miles). The cost of the motor kit is down to about $75 shipped from GM Parts Direct. I just changed it out this afternoon. It takes about 1/2 hour. Steering feels very nice now. Should be good for another 100k miles. I just did not see any value in mixing it up with the service department of the local GM dealer for a small job like this.