David Penman's dropped something on the bonnet of my wifes Ibiza, scratching it down to the metal. Trouble is she didn't notice it for a day and a half. They denied it, of course.

Oh and they delivered my Leon with a dent in the door. Took them 4 weeks to sort it out.

Other than that, I found them to be ok. But as others have said, check your car carefully after they have had it and before you drive off.
 
I never trust dealers anymore with my cars I do all my own services. Cheaper and you can do 2 or 3 for the price of 1 at a dealers!! I did my service the other week and took me and hour and she was back on the road :)