We go to the Starbucks quite frequently after I go to lunch with my wife in Scottsdale. It's pretty standard as far as Starbucks go, and the drive thru service is usually quick, as long as there's not somebody ahead of you ordering a bunch of drinks.
I haven't been inside of this location, so I can't really comment about that. The biggest downside to this location is the parking lot. Parking is cramped and the people who do park there don't pay attention when they're going in and out of spaces, making for an occasionally dangerous trip.
This isn't completely due to Starbucks, as it is a generally busy plaza. There have been a few occasions where are drinks have been made incorrectly, but the staff is always apologetic and willing to correct it right away.