The Terraza is a wonderful ride. We did however, blow a computer K module. Buick repaired the problem and provided us with a Chevy Tahoe while the repairs were completed. On our family trip to Florida from Michigan and back, we really enjoyed the comfort and ride.
The inside comfort of the seats and the entertainment system.
Make the storage areas behind the seat a little bigger. Perhaps a fold down tray like they have on airplanes.