Stu,
This is one where you should do a search of the threads as there have been several on the subject.
They are highly sought after and getting one is luck of the draw based upon location and colour. A sterling grey is for sale on the board.
General feeling is that they are a great extra for our climate, quieter, comfortable and more secure for Winter. Fit in a trice, easy to remove and better rear vision that hood up. Downsides are expense in the £900 to £1200 2nd hand and some don't like the looks of them. Think that's as honest a summary as I can conjure up from someone who has one and loves it.
