Oh looked at the add looks like its about right pricewise, make sure the car will go where you want it to go ie it has an aftermarket addition to the splitter and side skirts. Mine has none of this and still have to be careful entering my driveway. So a test drive home wouldn’t be a wasted test. Also sync 2, mines a 66 plate but has sync 3, so mine was manufactured around October 10th 2016, the one in the add is probably an early September build. From what has been said on here the Sync3 is a more preferable system.
Price looks reasonable, looks a nice one owner car. As others have said, check if the FSA has been carried out and normal stuff like servie history is available. Also should have the Mountune folder/info?
Adam, there are a lot of these cars for sale at the moment, so I am saying you have the biggest and best choice at the moment, sync 3 definitely better than sync 2, to upgrade is possible but not worth the cost and hassle you can probably buy a more recent model with the upgrade for similar money. I purchased my MK2 Focus RS from Hartwells at Grimsby, I wouldn’t buy from them again for a number of reasons.