The seats in my 2017 Yukon are actually really bad. Can’t sit longer than 3 hours in those. On my way to FL I sworn I will never drive that long anymore. Test seating in the Premier, RST and High Country trim made me feel that the seats are much much more comfortable. I‘m 6‘2“ and not fat lol. I really hope the seats are better than in my current Yukon as this would be a total deal breaker. Seats are one of the reasons why I’d like to switch cars