i am glad I specced the the panoroof and i have had no problems with it. However, as others have noted, from inside the aperture seems pretty much the same size as any other standard sunroof, I like the light, airy feeling it gives to the cabin, but this may not be to everyones taste. I particularly like the impact it has on the styling of lighter coloured coloured cars blending the windscreen into the roof. I particularly like it on my pure white(pic on p.29 new arrivals), silver and tornado red. I have also found it to be pretty quiet whether open, closed or tilted. As far as the weight is concerned , I am not sure how much difference it makes, but i am led to believe that weight/co2 emissions was the reason I couldn't configure the roof with 19inch wheels when I put my order in. I hope this helps.