I usually do not like to give negative feedbacks, but I have to say this hotel was one of the worst hotels, if not the worst, where I stayed in Japan. First, I booked a non-smoking room since I am highly allergic to smoke. However, the "non-smoking" room smelled like an ashtray. I addressed the issue to the front desk, and they brought an air-purifier. It helped a little, but I ended up coughing all night. Also, when I got together with a friend and tried to go up to my room, we were bluntly stopped by a staff member. She was very stern, and made us feel extremely uncomfortable. Granted it does say only the guest is allowed in the room, there was no reason for her to yell at us. In fact, everyone in the lobby heard her scream at us, and it was embarrassing to be treated like a criminal. Other staff members were polite and pleasant, but one rude one definitely spoiled my impression of the hotel. So, I suffered from smoke in the room and abuse from a staff. If I go back to Osaka in the future, this hotel will not be my selection.