Stayed here during a weekday stay and didn't use a SUA. As predicted by Aventine, I was upgraded to 805 suite even without a SUA. First time staying at the hotel. Probably will be my last time since I really do like the IC Parnas across the street better. The suite was definitely bigger than the Jr. Suite that I get upgraded at IC Parnas and had a way better view. 805 was high enough where I felt that people couldn't look in easily. You can definitely here the construction out in front but it didn't bother me. It's a great hotel and I enjoyed staying here. The sauna was free and it was good. But compared to IC Parnas, I didn't like the long walk through the subway to get to COEX. The breakfast sucks compared to IC Parnas, it's just smaller when compared to the main restaurant and less premium than the lounge breakfast at IC Parnas. The double elevators to get to your room and outside like IC LA is annoying. IC COEX has the best breakfast of the bunch, it just has more Korean choices. I can get eggs, bacon, etc at a Hyatt Place breakfast in the US...haha...