I couldn't resist the admirable beauty of the GMC Yukon XL Denali and hence decided to purchase it. But after owning it for around six months, the only thing that I can say is that you should never judge a car by its outward appearance. Within two months of ownership, the sound system and radio stopped working completely. When I went to the dealership to get the issue resolved, I got to know that this problem was common in most of the models. Sometimes the car doesn't start making it difficult to rely on it for important business meetings. I'm worried about the future issues I might face with this car.