Does the Beetle come with an option for a panoramic sunroof? You posted this question in the 2012+ Beetle forum.
Anyway, I have a Sportwagen with the pano roof and I have had no problems with it. However, some people have had issues. The most common issues seem to be clogged or broken drain lines (there are 4) which causes leaks into the car, and problems with the retractable sun screen (not the actual roof). Like anything else mechanical, it can break and it does require some regular maintenance (lubrication and seals).
Have Fun!
Don