Hi Rob42
as UK Dave says in the US the back window has been known to fall out due to the adhesive melting, no chance of that here then , i've not noticed any problems on mine yet (touch wood) but its not done many miles on a 2005 plate @ 20000 miles, I think some one on the uk forum had a cable snap but i beleive was an easy fix, noise could be a problem for some, but i'm half deaf anyway, but they do look so good with the roof down and always get admring glances, not sure if its me or the car you wont regret getting one,good luck in you decision