I have had one for 12+ years. If some schmuck hadn't taken a razor to one of the rear windows it would still be pretty much perfect. I have used the sunroof option only a few times, but the main advantage in my mind is the quick release mounting method for the windshield. It's really easy to get the top back up and attached, and you spend a lot less time getting rained on than if you were using a windshield channel.
The main "down side" I can think of is that it doesn't use a windshield channel, so if you want to drop the top & run with a bikini, you will have to install a channel and remove it when you want the top back on.
That said, I stopped running with a bikini not long after I got this top, as it is good enough to just remove all the windows. Plenty of shade and all the breeze you can handle.
Another thing that can be a little tricky is when you drop the top, you have to be careful with the brackets that go around the doors, at least on the hard door version. I have forgotten a few times and ended up having to bend them back in to shape.