We have one, and I can't see that we'll ever open it. We tried it when we bought the 500, but that's it. If we'd bought the car brand new, I wouldn't have asked for one.
We have a Clio we've had since brand new, she's just had her 14th birthday. It's an Initiale model ie with all the extras and gizmos, air con, leather, the lot ............ plus it has an electric glass sunroof. I doubt if it's been opened half a dozen times in it's life.
Also, a couple of years ago, we started getting damp and wet inside her. Eventually traced to the sunroof seals where is fits to the steel of the roof. I had to take it completely off and use new sealant. One heck of a job!
Give me a fixed glass roof or no sunroof at all. Why do you want an opening sunroof if you have air con? Seems daft to me.
Regards,
Mick.