None so far except for my convertible rooftop leak, but it was my fault that it happened.
I got analed about a small tear on the rubber seal and asked them to replace it. After they did, the rooftop started leaking when it rained. I kept on complaining and eventually they replaced the entire roof top seals (front, middle, back, sides) under warranty. Estimated cost to repair: $2978.43. Now it looks good as new.
I probably don't have any problems because my car only has ~28k miles... Not bad for a 5 year old car hehe