I've been looking at a new rig for the wife to drive and she asked me about having a sunroof. I know the earlier factory units had problems with leaking after a few years so I thought I'd ask and see what the current state of sealing was. Most vehicle I gat to work on don't have them and I can actually only think of 1 vehicle I know the owner of that has a GM with the factory moonroof.
(new vehicle will probably be a Trailblazer since she currently drives an S Blazer and likes the size and handling of that vehicle)