Great place to stay to explore Seoul. The staff is amazing, very friendly and helpful.
This is a small and cozy hotel, but it provides all you need. When traveling to South Korea it is better to speak Korean, and it is great to have advice, explanation and support in English if you do not speak Korean, like me.
For me, this place went beyond my expectations, considering very reasonable price!
There are hundreds (literally) small restaurants in the walkable distance. So many, so it is hard to choose :)
Public transportation in Seoul is great. Get a T-Money card in 7-11 or CU store, and go exploring. Or walk, if you are into walking.
Another huge benefit of staying at DH Naissance Hotel is that it is some 300 yards from the Airport shuttle stop. Taxi to the airport gets expensive, and the shuttle (it is called Airport Limousine)