We've had this Terrazza for just about a year now. Other than needing a new transmission in the first 5000km (!) it has been just fine. It is a well built and very comfortable van. We have driven it to Florida and back (22 hours) and it is just great, quiet on the road and the 3.9L V6 is outstanding, great mileage and excellent pick-up. Rear DVD player and wireless headphones are fantastic.
Sliding side door, front heated seats, stereo system, DVD system is excellent. Gas tank is huge, great for long trips.
Fewer rattles up front would be nice, long term value is very questionable as GM depreciates these models far too quickly.