Had late check in, the duty worker claimed he could not find my reservation as I did not use my middle name during reservation with Hotel.com but in few seconds, the other worker who was standing by and listening to my conversation with him, was able to find and verify it. In fact, I did not have a middle name to use. Instead of apology, he tried to educate me why he claimed he could not find it. He should say I did not hear you well, or can you spell your name so I could review it again. Noticed they already printed out the copies all reserved rooms in the folder so he could simply review those reservations before he told me he could not find it. Later I found that he was a manger. It was due to lack of courtesy toward customers including not wanting to hear what customer explained. This poor attitude continued until I finished the check in process. Had reservation for 2 rooms with my extended family members. My family made several comments on cleanness on rooms such as dirty carpet, washed out blanket with holes. No door to rest room and draining systems were poorly arranged so water was kept coming into hallway which was covered by carpet. I already made 4 trips to Korea and used more than 20 hotels, and it was the worse place I remembered. It was not worth it for the cost I paid.