Oasis Hostel is brand new opened in end March 2016.
It is 5 min walking distance from Gate #1 of Gangnam Subway Station, the most convenient place.
All of the rooms are individual ones (three types including single, super single, and double beds) which have conveniences including air-conditioner, refrigerator, electric range, micro-wave, washer, individual free Wi-Fi access and toiler/shower at each room.
There is a dryer in the hallway to be shared.
There is a common PC/printer available as well.
The entrances and each room are operated with digital door lock system.
Once you stay there, you will likely revisit it.