Hotel Marcher in Busan

Stay away from this hotel.
We arrived at this hotel at 5pm and when you get the room key, they only give you one key, so it's very challenging if you are a group of 4. As soon as we entered the room, we smelled a bleach or some other chemical, we didn't know what it was. We asked to change rooms and after some debate, the hotel agreed. At night, before we put the kids to sleep, my husband checked the beds to make sure they were okay. We found hairs all over the sheets and ** on the pillows! We felt so disgusting! As it was late, we couldn't check out, so I asked them to change the sheets, but all their staff smelled like cigarettes, so my husband and I changed the sheets on all our beds alone!
That wasn't enough, it was extremely noisy in other rooms at night, people dragged furniture, had parties, smoked all night, and we didn't sleep for a minute the whole night. When we asked to check out, they refused, even though we didn't want to stay there for an extra night.
We booked another hotel despite the hotel's denial of any responsibility.
Don't choose this hotel, there are many better options in town.