We will stay at this hotel in early July as Platinum. I will post my experience here in mid-July. We recently stayed at Grand Ambassador with Pullman in Seoul as Platinum. They gave us a room upgrade on a higher floor and we chose gifts of sweet pastries & water bottle. Wifi was also free in room. They did not offer us access to Exec lounge or breakfast (like the Hilton Gold). However, I don't think Sofitel / Accor gives free breakfast to Platinum.