Hotel was easy to find, not far from gangnam station. Room was clean, service good, breakfast enjoyable.
This hotel is close to the airport bus pickup point - bus 6009 passes 50 metres from hotel so great when you have an early morning flight. It takes 1-1.5 hours to get to airport so plan according.
Other things to note: cafes and fast food outlets are very close to the hotel, and if you want to get to the market areas there are a few buses that will drop you off close by, use Google maps for guidance if you like.
Get a T money card it's the main card used on public transport - convenience stores seven11, g25 etc have them if you forget to get at the airport.
Hope this helps and enjoy Korea.