Staff is extremely friendly and my room on the 18th floor was comfortable, well furbished and very clean. Room 1807 looked out on the river and was very close to the elevator.
I used the gym which was nice...I like running and there was an adequate number of machines...I don't do any other machines and am therefore not able to judge their quality and quantity, however, the gym is very big and I am sure there were places I didn't see.
I also used the spa (a japanese style bath) which was very luxurious, with body, face and hair products at the disposal of visitors.
I particularly liked the breakfast buffet, which was both generous (both Asian and Western style foods) and extremely tasty.
The hotel is right next to the Express Bus Terminal and the bus from the airport brings you in 1 hour from door to door.
Also, two major subway lines meet there and with it it is very easy to reach all parts of the city. Tickets are extremely affordable and one avoids major traffic jams. Since everything is in Korean, I found it useful to orient myself using the station numbers, which can also be found above the doors to the trains ( both the station you are in and the number of the next station are indicated), this way you know where you are and where you are going.More