The hotel is well located with good access to major subway lines and bus thoroughfare. You are also close to the Arex train or the Airport bus if you wish to take public transportation.
It's very well located to shopping, restaurants and bars. Although it has tourists, you definitely get to observe more locals in the area (vs an area like Myeongdong that feels almost completely tourist-driven).
We stayed in a room with two single beds and it was perfectly fine for 4 nights. If you are staying over a longer period of time (ie a week), I'd consider upgrading to a larger room for a bit more space. The room had a nice view of the city and lots of outlets (great when you are sharing a space). The bathroom amenities offer Malin Goetz products, which is quite nice. Toilet also has a washlet, which is fairly standard for decent hotels in Korea. This room also had the best air conditioning of all the hotels we stayed in during our trip (central air duct that isn't noisy).
The only main complaint I had during the stay is that the hotel Wi-Fi is unreliable from the hotel room. In the lounge, bar and public spaces it's fine. But in your room you'll have a difficult time connecting to the network. Ended up relying almost entirely on my cell phone data while staying in the room - if you have unlimited 5G data then you won't have a problem.