I spent 4 nights at ibis hotel, one of the lady at the front desk who can speak good English, and she was really nice, I was so grateful.
My room was at 30/F, the view was awesome! It was clean, but the two cushions on my bed were super smelly… I wish the housekeeper could have noticed and changed the cover. The location of the hotel was great, it took me around 5mins walk from Yongsan Station exit 3 across the bridge to the hotel. Yongsan station is close to Sinyongsan station, so there is another choice if you travel to other line. I wanted to put this information here because when I was using the google map, it couldn’t give me an accurate walking direction. So hope this could help those who wanted to stay in this hotel.
Overall experience I would say not bad, but compared to the other hotels located at Hongdae that I have stayed in the past, I think those are more convenient.