The staff is nice and friendly, but it's difficult to communicate as I don't know korean. It took 1 hr to complete the check in because they mixed up my name with another guest, however, our name is totally different. Moreover, there's no free shuttle bus service to airport, I think the hotel should correct this piece of information.
I stayed for 6 nights, it's clean and comfortable, the hotel location is fantastic, it's close to Yeongdeungpo station, Lotte department store, times square and Yeongdeungpo shopping centre, many restaurants downstairs.