The staff was very rude when he dealt with a guest. I have asked early checkin since I arrived there in the morning after overnight flight. I had an intention to pay for it. However, he asked me to provide complimentary early checkin subject signing in IHG Membership. and, I did it and he told me it will take 15~20 mins. However, it took longer time and finally it reached 1 hour. I approached to him to ask about how long does it take longer since I had another schedule for my business. However, he stopped my conversation and he kept emphasizing he will explain first with very opperesive mood. I started the morning very bad experience.