My boyfriend and I just stayed at this hotel for 4 nights. If you like shopping and eating, then this hotel is ideal. It is also near tourist attractions such as the N Seoul tower, Dongdaemun, the palaces etc.
I read previous reviews that said that the rooms are small. The rooms are actually much bigger than rooms you would find in hong kong. We didn't find it small at all. The room is clean as well.
Getting to and from the airport is easy! You can take the Airport shuttle bus #6015 for 10,000 won each way. The bus stop is right in front of sejong hotel, which is really like a 3 minute walk away. I'm not sure why others complained that it was far.
Also, we booked on agoda.com with no breakfast included, but upon checkin, the receptionist included daily breakfast vouchers for us which was a plus!:) We also received coupons to etude, and face masks. Checkin time is 2pm but the receptionist actually did allow us to checkin earlier. We decided to wait however, since he said he could get us a room with a window. Overall, we had a good stay at this hotel and would highly recommend it to others who are looking for a nice affordable convenient place to stay near central locations.