I know when I got mine I wasn't too happy with the clutch operation but it seemed to settle in OK and can even pick away in 2nd gear occasionally. I believe some of the forum members on here have experienced a burning smell when trying to reverse a caravan or trailer but not an awful lot of trouble with them. Yiu were lucky they changed it under warranty, it's an arguable point and difficult to prove from the owner's point of view. Did they find anything wrong eg sticking clutch master cylinder or faulty CSC?
2015 Antara Exclusiv 2.2 163ps Manual 2WD