Zip Hotel

Definitely suggested!!
The hotel is affordable, and clearly used also by locals for a one night stay. So the rooms are nothing amazing, but:
-it was very clean
-the people at the reception were suuuuper nice. Yeah they don't really speak english but they are completely available to help with anything and with a little Google Translate you will have zero problems.
-the location is actually very good, bcs the area is very much alive and full of locals enjoying their day/night. Seoul is super well connected (maybe the best transport system I encountered until now, better than any I ve seen in Europe) so the hotel is a good resting point in your touristic trip even if not super super centric.

Overall, a super nice experience, I personally don't think it deserves the bad reviews I've seen on google maps.
I wouldn't recommend it for trips that want to be especially romantic or the most comfortable possible (in those cases as usual you will have to spend some more).

Great fuss free hotel for those travelling as a couple or solo. Room is clean, bed is decently comfortable. We don't use the AC as the ambient temperature (15 degrees C) is already to our liking.

Walking distance to the train station(green), 7-11, vape shop, eateries, bakery (Paris Baguette, fantastic bagels and sandwiches).

Staff is friendly and speaks English.

Careful! Do not book this "hotel".
It is a hotel where people just go to have quick sex. Condoms are provided.
Not knowing this from the advertisement they make we booked 3 nights at more than 100$ per night. We fled to another hotel after the first night because we felt extremely unsafe. No refund, we lost the money.
No furniture in the room. Bed and bathroom were clean. Aircon and heater did not work at all. Look at the other reviews for cigarette smell etc.
Need to prepare breakfast in a disgusting room outside the hotel. Just noodle soup, toast and coffee available. Worth not more than 3$. We didn't have breakfast there.
No one speaks English. Personnel unfriendly, not helpful.

Do NOT come to this "hotel." Honestly, should be considered a motel. My mom and I came to Korea for the first time in a long time, we're hotel hopping because of the expenses and we decided to stay here for 2 nights. And oh my god. Every single room reeks of cigarettes, there's definitely bed bugs because after my first night here, I have a total of 3 bug bites. Even if you open the windows the cigarette smell does not go away. The location of this place is ok since it's near a subway station and resturaunts but the hotel itself is horrible. Not to mention, the toilet seat had weird stains and so did the blankets. The towels also do not smell clean at all. The other people in this hotel are also extremely loud. I DO NOT recommend this place at all for anyone. It seems like a 1 night stand kind of hotel and not at all kid/family friendly and fs don't recommend to any solo travelers.

The location was great. Super close to a lot of things. Staff is incredibly friendly. Clean rooms, free ice cream, popcorn and breakfast. The bed was very firm but most of the beds we stayed on in Korea are firmer than the beds we've had in the US. They have a washer and dryer for use but they essentially do your laundry for a fee.

I would consider booking here again despite the stiff beds. The staff was just so lovely.